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Is any amount of alcohol safe to drink?
Overview
Current evidence and clinical guidelines state that there is no known safe amount of alcohol to drink at any point during pregnancy. Even small amounts of alcohol can cross the placenta and may affect fetal development, so the safest approach is to avoid alcohol entirely while pregnant.
Key Points
No Safe Amount Established
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There is no established safe level of alcohol consumption during pregnancy. All major health organizations recommend complete abstinence to minimize any risk to the developing baby.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAbout Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govAlcohol and pregnancy: is drinking up two units twice a week ‘safe’ or should pregnant women completely abstain? - ARC WestThe Department of Health released new guidelines on alcohol consumption during pregnancy in January 2016. They state that no level of alcohol is safe to drink during pregnancy. This is based on the precautionary principle, which assumes potential harm to the foetus in the absence of high quality ...Read full articleSource: ARC WestAlcohol and Pregnancy | Johns Hopkins MedicineDrinking alcohol while pregnant is a leading cause of birth defects in a fetus. Everything a mother drinks also goes to the fetus. Alcohol is broken down more slowly in the immature body of the fetus than in the body of an adult. This can cause the alcohol levels to remain high and stay in ...Understanding Fetal Alcohol Spectrum Disorders | National Institute on Alcohol Abuse and Alcoholism (NIAAA)Research shows that binge drinking and heavy drinking duringpregnancy put a developing baby at the greatest risk for severe problems.4 However, even lesser amounts can cause harm.5,6 In fact, there is no known safe amount of alcoholconsumptionduringpregnancy.Read full articleSource: niaaa.nih.govAlcohol and pregnancy | Ready Steady Baby!Information about alcoholandpregnancy. Includes how alcohol can affect babies, making it more likely they'll be born early or underweightRead full articleSource: NHS InformData and Statistics on Alcohol and Pregnancy | Alcohol and Pregnancy | CDCReview data on alcohol use and pregnancy along with descriptions of national data sources.
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Alcohol can affect fetal development at any stage of pregnancy, including before you may realize you are pregnant.
About Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy | Ready Steady Baby!Information about alcoholandpregnancy. Includes how alcohol can affect babies, making it more likely they'll be born early or underweightRead full articleSource: NHS InformAlcohol Alters Gene Function in the Differentiating Cells of the Embryo | University of HelsinkiThis research is part of a broader project investigating the mechanisms by which alcohol affects early development and later health. Prenatal alcohol exposure causes a range of developmental disorders collectively referred to as fetalalcohol spectrum disorders (FASD).
Risks of Drinking Alcohol During Pregnancy
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Alcohol use during pregnancy is associated with increased risks of miscarriage, premature birth, low birthweight, stillbirth, and sudden infant death syndrome (SIDS).
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAbout Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govAlcohol and Pregnancy | Johns Hopkins MedicineDrinking alcohol while pregnant is a leading cause of birth defects in a fetus. Everything a mother drinks also goes to the fetus. Alcohol is broken down more slowly in the immature body of the fetus than in the body of an adult. This can cause the alcohol levels to remain high and stay in ...Data and Statistics on Alcohol and Pregnancy | Alcohol and Pregnancy | CDCReview data on alcohol use and pregnancy along with descriptions of national data sources.
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Drinking alcohol can cause a range of lifelong behavioral, intellectual, and physical disabilities known as fetal alcohol spectrum disorders (FASDs), which include fetal alcohol syndrome (FAS), the most severe form.
About Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govAlcohol and Pregnancy | Johns Hopkins MedicineDrinking alcohol while pregnant is a leading cause of birth defects in a fetus. Everything a mother drinks also goes to the fetus. Alcohol is broken down more slowly in the immature body of the fetus than in the body of an adult. This can cause the alcohol levels to remain high and stay in ...Understanding Fetal Alcohol Spectrum Disorders | National Institute on Alcohol Abuse and Alcoholism (NIAAA)Research shows that binge drinking and heavy drinking duringpregnancy put a developing baby at the greatest risk for severe problems.4 However, even lesser amounts can cause harm.5,6 In fact, there is no known safe amount of alcoholconsumptionduringpregnancy.Read full articleSource: niaaa.nih.govAlcohol and pregnancy | Ready Steady Baby!Information about alcoholandpregnancy. Includes how alcohol can affect babies, making it more likely they'll be born early or underweightRead full articleSource: NHS Inform
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Even light or moderate drinking has been linked to a small increase in the risk of preterm delivery and babies being born small for their gestational age. One study found women who drank even small amounts were 8% more likely to deliver a small baby, with estimates ranging from 2% to 14%.
Alcohol and pregnancy: is drinking up two units twice a week ‘safe’ or should pregnant women completely abstain? - ARC WestThe Department of Health released new guidelines on alcohol consumption during pregnancy in January 2016. They state that no level of alcohol is safe to drink during pregnancy. This is based on the precautionary principle, which assumes potential harm to the foetus in the absence of high quality ...Read full articleSource: ARC West
What If You Drank Before Knowing?
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Many people drink alcohol before realizing they are pregnant. The risk to the baby from small amounts of alcohol consumed before pregnancy recognition is likely to be low, but it is recommended to stop drinking as soon as pregnancy is known to minimize any risk going forward.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAbout Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Alcohol and pregnancy | Ready Steady Baby!Information about alcoholandpregnancy. Includes how alcohol can affect babies, making it more likely they'll be born early or underweightRead full articleSource: NHS Inform
Why Is There No "Safe" Amount?
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Research has not identified a threshold below which alcohol is guaranteed to be safe for the developing fetus. Because individual susceptibility varies and some effects may be subtle or delayed, guidelines err on the side of caution.
About Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy: is drinking up two units twice a week ‘safe’ or should pregnant women completely abstain? - ARC WestThe Department of Health released new guidelines on alcohol consumption during pregnancy in January 2016. They state that no level of alcohol is safe to drink during pregnancy. This is based on the precautionary principle, which assumes potential harm to the foetus in the absence of high quality ...Read full articleSource: ARC WestAlcohol and Pregnancy | Johns Hopkins MedicineDrinking alcohol while pregnant is a leading cause of birth defects in a fetus. Everything a mother drinks also goes to the fetus. Alcohol is broken down more slowly in the immature body of the fetus than in the body of an adult. This can cause the alcohol levels to remain high and stay in ...Understanding Fetal Alcohol Spectrum Disorders | National Institute on Alcohol Abuse and Alcoholism (NIAAA)Research shows that binge drinking and heavy drinking duringpregnancy put a developing baby at the greatest risk for severe problems.4 However, even lesser amounts can cause harm.5,6 In fact, there is no known safe amount of alcoholconsumptionduringpregnancy.Read full articleSource: niaaa.nih.govAlcohol and pregnancy | Ready Steady Baby!Information about alcoholandpregnancy. Includes how alcohol can affect babies, making it more likely they'll be born early or underweightRead full articleSource: NHS InformIs it all right for women to drink small amounts of alcohol in pregnancy? Yes - PMCSo, no evidence of harm from low levels of intake in pregnancy, but we can't completely exclude the possibility. But in a sense, all of this is of secondary importance. I'm not trying to argue that low levels of alcohol are definitely safe. What I am arguing is that we should respect the autonomy ...Drinking while pregnant: What we know and what we don’t | Your Pregnancy Matters | UT Southwestern Medical CenterThe research is conclusive: Binge drinking and heavy consumption of alcohol in pregnancy pose a definite risk to the developing fetus. The CDC defines binge drinking as four drinks or more in two hours for women (five drinks or more for men).
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Some studies have not found clear evidence of harm from very low levels of alcohol, but they cannot rule out the possibility of risk. Because of this uncertainty, abstaining is considered the safest option.
Alcohol and pregnancy: is drinking up two units twice a week ‘safe’ or should pregnant women completely abstain? - ARC WestThe Department of Health released new guidelines on alcohol consumption during pregnancy in January 2016. They state that no level of alcohol is safe to drink during pregnancy. This is based on the precautionary principle, which assumes potential harm to the foetus in the absence of high quality ...Read full articleSource: ARC WestIs it all right for women to drink small amounts of alcohol in pregnancy? Yes - PMCSo, no evidence of harm from low levels of intake in pregnancy, but we can't completely exclude the possibility. But in a sense, all of this is of secondary importance. I'm not trying to argue that low levels of alcohol are definitely safe. What I am arguing is that we should respect the autonomy ...Drinking while pregnant: What we know and what we don’t | Your Pregnancy Matters | UT Southwestern Medical CenterThe research is conclusive: Binge drinking and heavy consumption of alcohol in pregnancy pose a definite risk to the developing fetus. The CDC defines binge drinking as four drinks or more in two hours for women (five drinks or more for men).
Types of Alcohol
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All types of alcoholic beverages (wine, beer, spirits) carry the same risks during pregnancy. There is no evidence that any type is safer than another.
About Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govAlcohol and Pregnancy | Johns Hopkins MedicineDrinking alcohol while pregnant is a leading cause of birth defects in a fetus. Everything a mother drinks also goes to the fetus. Alcohol is broken down more slowly in the immature body of the fetus than in the body of an adult. This can cause the alcohol levels to remain high and stay in ...
Summary
There is no known safe amount of alcohol to drink during pregnancy, and the safest approach is to avoid alcohol entirely. Drinking alcohol at any stage of pregnancy can increase the risk of miscarriage, birth complications, and lifelong developmental problems for the baby. If you drank alcohol before knowing you were pregnant, stopping as soon as you find out is recommended, and you can discuss any concerns with your OB/GYN or midwife, who can work with you based on your specific medical history.
Peer-Reviewed Research
Published, peer-reviewed scientific studies from journals or databases.
Clinical Guidelines & Professional Sources
Clinical recommendations from government, public health organizations, or professional medical provider associations.
Medical & Academic Institutions
Information from hospitals, research institutions, or academic medical centers known for clinical expertise and research contributions.
General Health & Web Sources
Publicly available health-related articles from non-peer-reviewed sources. These may reference research or clinical guidelines, but are not primary sources.
Uncategorized Sources
Information from sources that have not yet been categorized.
What made this response need improvement?
What are fetal alcohol spectrum disorders and how do they affect children?
Overview
Fetal alcohol spectrum disorders (FASD) are a group of lifelong physical, behavioral, and cognitive conditions that can occur in children whose mothers drank alcohol during pregnancy. The effects can range from mild to severe and are highly variable from person to person.
What Are Fetal Alcohol Spectrum Disorders?
Definition and Types
- FASD is an umbrella term for a range of effects caused by prenatal alcohol exposure. It includes several specific diagnoses, such as:
- Fetal Alcohol Syndrome (FAS): The most severe form, involving growth problems, distinctive facial features, and central nervous system (CNS) abnormalities.
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Partial FAS, Alcohol-Related Neurodevelopmental Disorder (ARND), and Neurobehavioral Disorder Associated with Prenatal Alcohol Exposure (ND-PAE): These may involve some, but not all, of the features of FAS, and can include learning and behavioral problems without the physical features.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAlcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Is it all right for women to drink small amounts of alcohol in pregnancy? Yes - PMCSo, no evidence of harm from low levels of intake in pregnancy, but we can't completely exclude the possibility. But in a sense, all of this is of secondary importance. I'm not trying to argue that low levels of alcohol are definitely safe. What I am arguing is that we should respect the autonomy ...
Prevalence
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FASD is estimated to affect between 1% and 5% of first graders in the U.S., making it a leading cause of preventable birth defects and developmental disabilities.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.uk
How FASD Affects Children
Physical Effects
- Growth deficiencies: Children may be smaller than average in height and weight.
- Distinctive facial features: These can include a smooth ridge between the nose and upper lip, thin upper lip, and small eye openings (mainly in FAS).
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Organ and structural abnormalities: Including heart, kidney, or bone problems.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAlcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Is it all right for women to drink small amounts of alcohol in pregnancy? Yes - PMCSo, no evidence of harm from low levels of intake in pregnancy, but we can't completely exclude the possibility. But in a sense, all of this is of secondary importance. I'm not trying to argue that low levels of alcohol are definitely safe. What I am arguing is that we should respect the autonomy ...Alcohol and Women | ACOGWomen who are alcohol dependent ... health, safety, or relationships. Increased physical risks include ... Dependence—Alcohol withdrawal symptoms, such as nausea, sweating, shakiness, and anxiety after stopping drinking · Tolerance—The need to drink greater amounts of alcohol to feel the same effect · How can drinking alcoholduringpregnancy affect my ...
Cognitive and Behavioral Effects
- Learning disabilities: Difficulties with memory, attention, and problem-solving.
- Executive function deficits: Trouble with planning, organizing, and self-regulation.
- Speech and language delays: Problems with understanding and using language.
- Intellectual disabilities: Lower IQ and challenges with academic achievement.
- Behavioral problems: Hyperactivity, poor impulse control, and difficulty with social interactions.
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Emotional and mental health issues: Increased risk for anxiety, depression, and other psychological disorders.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAbout Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy | RCOGChildren with FAS usually have severe physical and mental disability. For more information, see the resources available from NOFAS (National Organisation for Foetal Alcohol Syndrome-UK) at: www.nofas-uk.org ... If you are planning a pregnancy, it is advisable not to drink alcohol during this time.Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govUnderstanding Fetal Alcohol Spectrum Disorders | National Institute on Alcohol Abuse and Alcoholism (NIAAA)Research shows that binge drinking and heavy drinking duringpregnancy put a developing baby at the greatest risk for severe problems.4 However, even lesser amounts can cause harm.5,6 In fact, there is no known safe amount of alcoholconsumptionduringpregnancy.Read full articleSource: niaaa.nih.govData and Statistics on Alcohol and Pregnancy | Alcohol and Pregnancy | CDCReview data on alcohol use and pregnancy along with descriptions of national data sources.Drinking while pregnant: What we know and what we don’t | Your Pregnancy Matters | UT Southwestern Medical CenterThe research is conclusive: Binge drinking and heavy consumption of alcohol in pregnancy pose a definite risk to the developing fetus. The CDC defines binge drinking as four drinks or more in two hours for women (five drinks or more for men).Alcohol and Pregnancy | ACOGIf you drink alcoholduringpregnancy, your baby may be at risk of lifelong birth defects. If it is hard for you to stop drinking, talk with your obstetrician–gynecologist (ob-gyn) or other health care professional about getting help.
Social and Adaptive Challenges
- Difficulty with daily living skills: Such as bathing, dressing, and managing money.
- Trouble forming and maintaining relationships: Both with peers and adults.
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Increased risk for secondary conditions: Including school suspension, trouble with the law, substance use, and mental health issues in adolescence and adulthood.
Alcohol and pregnancy: MedlinePlus Medical EncyclopediaPregnant women are strongly urged not to drink alcoholduringpregnancy.Read full articleSource: medlineplus.govAlcohol Use in Pregnancy - PMCAlcohol exposure during pregnancy results in impaired growth, stillbirth, and fetal alcohol spectrum disorder. Fetal alcohol deficits are lifelong issues with no current treatment or established diagnostic or therapeutic tools to prevent and/or ameliorate some of these adverse outcomes.Pregnant women’s alcohol consumption and knowledge about its risks: An Israeli survey - ScienceDirectA significant percentage of Israeli woman consumed alcoholduringpregnancy. ... Pregnant women did not receive information about risksofalcoholconsumption.Read full articleSource: sciencedirect.com
Lifelong Impact
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The effects of FASD are permanent, but early diagnosis and supportive interventions can help reduce their impact and improve quality of life. Many children with FASD require ongoing educational, behavioral, and social support throughout their lives.
Drinking alcohol while pregnant - NHSIt's recommended that if you're pregnant or planning to become pregnant you should not drink alcohol. This will keep any risk to your baby to a minimum. Drinking in pregnancy can lead to long-term harm to the baby, with the more you drink, the greater the risk.Read full articleSource: nhs.ukAbout Alcohol Use During Pregnancy | Alcohol and Pregnancy | CDCThere is no safe time for alcohol use during pregnancy. Alcohol can cause problems for the baby throughout pregnancy, including before a woman knows she is pregnant. Alcohol use in the first 3 months of pregnancy can cause the baby to have abnormal facial features.Alcohol and pregnancy: is drinking up two units twice a week ‘safe’ or should pregnant women completely abstain? - ARC WestThe Department of Health released new guidelines on alcohol consumption during pregnancy in January 2016. They state that no level of alcohol is safe to drink during pregnancy. This is based on the precautionary principle, which assumes potential harm to the foetus in the absence of high quality ...Read full articleSource: ARC WestAlcohol Alters Gene Function in the Differentiating Cells of the Embryo | University of HelsinkiThis research is part of a broader project investigating the mechanisms by which alcohol affects early development and later health. Prenatal alcohol exposure causes a range of developmental disorders collectively referred to as fetalalcohol spectrum disorders (FASD).Alcohol Use in Pregnancy - PMCAlcohol exposure during pregnancy results in impaired growth, stillbirth, and fetal alcohol spectrum disorder. Fetal alcohol deficits are lifelong issues with no current treatment or established diagnostic or therapeutic tools to prevent and/or ameliorate some of these adverse outcomes.
Summary
Fetal alcohol spectrum disorders are a group of lifelong conditions caused by alcohol exposure before birth. They can affect a child’s physical health, learning, behavior, and ability to function independently. The severity and combination of symptoms vary widely, but early identification and support can help children with FASD reach their full potential. If you have concerns about a child’s development or possible prenatal alcohol exposure, it might be beneficial to speak with a pediatrician or developmental specialist who can work with you on your personal course of care.
Peer-Reviewed Research
Published, peer-reviewed scientific studies from journals or databases.
Clinical Guidelines & Professional Sources
Clinical recommendations from government, public health organizations, or professional medical provider associations.
Medical & Academic Institutions
Information from hospitals, research institutions, or academic medical centers known for clinical expertise and research contributions.
General Health & Web Sources
Publicly available health-related articles from non-peer-reviewed sources. These may reference research or clinical guidelines, but are not primary sources.
Uncategorized Sources
Information from sources that have not yet been categorized.