How does smoking during pregnancy affect babies?
When you smoke, your baby does too. Every cigarette contains 4,000 chemicals, which go into your lungs when you smoke. Once in your lungs, the nicotine, poisons and carbon monoxide cross the placenta to your baby.
How can smoking during pregnancy harm my baby?
Research shows that smoking in pregnancy may harm your baby in a number of different ways. These include:
- a higher risk of miscarriage
- a higher risk of premature birth
- a greater chance of having a low birth-weight baby
- a higher risk of stillbirth.
Your child’s development
Smoking when pregnant can also affect your child as they grow up. Babies and children whose mothers smoke during pregnancy are also at great risk of:
- sudden infant death syndrome (SIDS)
- infections in the airways
- ear infections
- behavior difficulties such as ADHD (attention deficit hyperactivity disorder).
Stopping smoking reduces all these risks.
Did you know?
Many women give up successfully. Smoking rates recorded at delivery have fallen to their lowest recorded level in England in 2019.
Talking to your midwife about smoking
At your first antenatal appointment, your midwife will ask lots of questions about your lifestyle, including whether you smoke or have recently quit. You'll also be asked whether anyone in your household smokes.
It’s very important that you tell them if you smoke. Your midwife will not judge you if you are a smoker. They know how hard it is to stop and they will be very keen to help you in any way they can.
Find how you can get help to stop smoking in pregnancy
Smoking in Pregnancy: Communication with Women Working Group. 2015. Shared key messages.
Royal College of Physicians, Tobacco Advisory Group(2010) Ch 3. Effects of smoking on fetal and reproductive health. In: Passive smoking and children: A report by the Tobacco Advisory Group of the Royal College of Physicians.
NHS Choices. Stop smoking in pregnancy. https://www.nhs.uk/conditions/pregnancy-and-baby/smoking-pregnant/ (Page last reviewed: 07/11/2019. Next review due: 07/11/2022)
The Royal College of obstetricians and gynaecologists (2015) Smoking in pregnancy https://www.rcog.org.uk/en/patients/patient-leaflets/alcohol-and-pregnancy/
NICE (2018). Smoking: stopping in pregnancy and after childbirth. National Institute for health and care excellence https://www.nice.org.uk/guidance/ph26
NHS Digital. Statistics on Smoking, England - 2019. https://digital.nhs.uk/data-and-information/publications/statistical/statistics-on-smoking/statistics-on-smoking-england-2019Hide details
ℹLast reviewed on February 14th, 2020. Next review date February 14th, 2023.