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Effects Of Alcohol, Smoking And Marijuana On Pregnancy

If you're pregnant or trying to get pregnant, stop all the substance abuse. It's not only your health which is at stake but also your baby's health.

Written by Editorial Team |Updated : December 17, 2021 1:31 PM IST

Our world is changing very fast. Girls drinking and smoking was a very rare site in the past but nowadays it is as common as seen in boys. On the contrary, studies have found that girls are more likely to binge drink and more dependent on marijuana as compared to males. No matter how comforting and cool it may appear, alcohol, tobacco and marijuana have a lot of adverse effects on the developing baby.

Looking at the effects of alcohol on developing baby, it is seen that if alcohol is consumed in the first three months of pregnancy, then it can cause multiple birth defects in the baby. These include abnormal facial features, small head size, poor body weight, poor coordination, hyperactive behaviour, difficulty with attention, visual and hearing problems, intellectual disabilities, heart and kidney disorders. All these features collectively fall in the category of foetal alcohol syndrome. It can also cause miscarriages, preterm labour, intrauterine deaths of the baby.

All these adverse events usually happen after binge drinking during pregnancy. But no amount of alcohol is safe during pregnancy. And no type of alcohol is safe.

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How alcohol effects the developing baby

Alcohol is directly transmitted from the mother to the baby through placenta and since the baby's liver is not fully developed even till the end, the baby's body is not able to metabolise alcohol and this unmetabolised alcohol directly enters the baby's brain and cause neurodevelopmental disorders. So, even if you are drinking a glass of wine, stop it as soon as possible. Ideally if you are planning for pregnancy say no to alcohol atleast for 6 months prior to conception.

Both mother and father should quit smoking

Coming to the effect of smoking on the baby. Smoking can affect your baby before, during and after pregnancy. The carbon monoxide in the smoke decreases the oxygen levels in the mother's blood and hence lead to miscarriage, preterm labor, sudden infant deaths and birth defects in the baby. Sudden decrease in oxygen levels can lead to sudden separation of the placenta and can even lead to malpositioning of placenta. It is not only the direct smoke, but the passive smoke is even more harmful. It contains more tar and other harmful substances which can directly affect the baby. So, it's not only the mother even the father should quit smoking. Passive smoke can lead to asthma and dust allergies in the long run in the unborn child.

Marijuana use can reduce oxygen supply to the baby

Weed or marijuana is the most commonly abused illicit drug during pregnancy. It is usually abused by the mothers for the pain relief in the legs and the back and also to decrease the pregnancy induced anxiety. The active compound of marijuana is 9 Tetrahydocannabinol. This compound directly crosses the placenta and can decrease the oxygen supply to the baby along with being a neurotoxin thereby causing developmental disorders, poor memory, and difficulty in controlling impulses. The effects like intrauterine growth restriction, small head, decreased weight and sudden death are similar to the effect of smoke on the child. Some women resort to vaping, e-cigarettes thinking that they are safer, but actually they are more harmful because the smoke enters directly to lungs.

Pregnancy is a very holistic choice so as a gynecologist I would recommend all of you to stop all the substance abuse. It's not only your health which is at stake but also your baby's health. Whatever you eat, drink, smoke or apply on skin, everything goes to the baby in some form or the other. So, make good choices which are healthy for you and your baby.

The article is authored by Dr Amodita Ahuja, a New Delhi-based well-known consultant obstetrician, gynecologist, laparoscopic surgeon and infertility specialist.

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