Smoking and IVF are a dangerous combination. It is widely known that smoking during pregnancy is harmful to both the mother and the baby. In fact, the NHS offers a breathalyser service to all pregnant women to ensure they are not smoking. However, when it comes to IVF patients, the risks are even greater.
The Effects of Smoking on IVF Patients
Recent research has shown that smoking during IVF treatment can decrease endometrial thickness by the time of embryo transfer, thereby reducing the chances of pregnancy and increasing the risk of implantation failure. Smokers undergoing IVF cycles were found to have an endometrial lining that was two millimeters thinner than non-smokers. While the quantity of eggs was not significantly affected, it is important to note that the transfer and implantation stages are crucial moments in the IVF process. Therefore, it is unwise to ignore the evidence and continue smoking.
A study conducted in the Netherlands on IVF and smoking revealed that even just one cigarette a day for 12 months can reduce the chance of a live birth by 28%. It also increases the rates of miscarriage. The study pointed to endometrial damage and issues with follicle formation as reasons for these negative effects.
The study analyzed data from 8,000 women who underwent IVF treatment at a Dutch clinic. The results clearly indicated that smokers were causing their own fertility problems. The researchers advised that women should completely quit smoking, although they were unsure of the exact duration of smoking cessation required to achieve optimum fertility levels. The study also found a link between obesity and infertility, emphasizing the importance of maintaining a healthy diet during IVF.
The NHS's Stance on Smoking
The NHS strongly advises against smoking during pregnancy. It highlights the fact that cigarettes contain thousands of harmful chemicals that can harm the baby. Quitting smoking offers numerous benefits, such as reduced morning sickness, fewer complications, and a lower likelihood of stillbirth. The NHS also emphasizes the dangers of passive smoking, as it leads to 17,000 children under the age of five being hospitalized each year.
It is worth noting that smoking can also negatively impact male fertility. It is well-known that cigarette smoking can affect sperm quality. Therefore, if a couple is trying to conceive through IVF, it is recommended for the male partner to quit smoking as well. Studies have shown that IVF outcomes, including pregnancy, implantation, and live births, are significantly reduced when men continue to smoke.
Smoking puts approximately 4,000 chemicals, carbon monoxide, and nicotine into the bloodstream. This means that less oxygen is available for the baby. Every time a person smokes, the baby's blood flow is affected for 10 seconds. Smoking between four and nine months of gestation causes the most damage. Therefore, regardless of whether undergoing IVF or not, smoking while pregnant is not worth the risks.
How Long Should You Stop Smoking for IVF?
If you are trying to conceive through IVF, quitting smoking is the best thing you can do to improve your chances of success. Quitting smoking not only increases the likelihood of getting pregnant but also dramatically reduces the risk of pregnancy complications.
Even low levels of smoking, such as 5 to 9 cigarettes per day, can make it more difficult to conceive. Smoking also increases the risk of infertility, both for first-time pregnancies and for those who have been pregnant before. Furthermore, smoking can affect the success rates of fertility treatments like IVF.
Secondhand smoke, also known as passive smoking, can also impact the chances of getting pregnant. Therefore, it is essential to be mindful of the risks and avoid exposure to secondhand smoke as well.
Improving Fertility by Quitting Smoking
Quitting smoking can improve fertility in both men and women. For men, quitting smoking can improve sperm count and quality, as well as reduce the risk of impotence over time. It can also increase the chances of success with fertility treatments like IVF.
For women, quitting smoking before getting pregnant is ideal. However, it is never too late to stop smoking, as every day without toxins from cigarette smoke can make a significant difference to the health of both the mother and the baby. Stopping smoking during pregnancy reduces the risk of the baby being ill in the first month of life.
When to Stop Smoking for IVF
It is recommended to stop smoking at least four months before attempting to get pregnant through IVF. However, stopping at any point is beneficial. Cutting down on smoking rather than quitting altogether is not advised, as even low levels of smoking can be harmful to both pregnancy and the baby. Low-tar or low-nicotine cigarettes are equally harmful.
Nicotine replacement therapy (NRT) is a safe option for those trying to quit smoking while attempting to conceive. NRT products, such as patches, chewing gum, lozenges, inhalators, nasal sprays, and mouth sprays, only contain nicotine and none of the damaging chemicals found in cigarettes. However, it is important to consult a healthcare professional before using any NRT products.
It is worth noting that liquorice-flavored nicotine products should be avoided, as excessive amounts of liquorice root can affect a baby's development. It is best to opt for other flavors, such as fruit or mint.
While e-cigarettes may help some smokers quit, there is limited research on their safety during pregnancy. The vapour from e-cigarettes contains some potentially harmful chemicals, albeit at much lower levels than those found in cigarette smoke. It is recommended to explore other quitting methods, such as NRT and support from NHS Smokefree services, which have been shown not to cause harm.
Seeking Support to Quit Smoking
Quitting smoking can be challenging, but there is plenty of support available. Research shows that individuals who receive support from trained advisers are twice as likely to successfully quit smoking.
The NHS Smokefree helpline offers free help, support, and advice on quitting smoking and can provide information about local support services. Additionally, GP surgeries and pharmacists can assist in finding the nearest NHS Stop Smoking service. The NHS Quit Smoking app is also available for download.
Another helpful resource is Action on Smoking and Health (ASH), a charity that raises awareness about tobacco use and campaigns for ways to eliminate the damage caused by smoking. Their website provides information about various aspects of smoking and quitting, along with links to other stop smoking websites.
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