Impact of Tobacco on Fertility and the Success of Reproductive TreatmentsPhoto by Ivan_z on Pexels
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Impact of Tobacco on Fertility and the Success of Reproductive Treatments

Notícias Portugal9 September 2026 at 11:02

The World Health Organization (WHO) issued a warning about the link between tobacco use and infertility, alerting that one in six people of reproductive age may face difficulties getting pregnant. WHO defines infertility as the inability to conceive after 12 months of regular sexual intercourse. Smoking emerges as one of the main factors affecting reproductive health, impacting both women and men.

An analysis of decades of research revealed that women who smoke face a 40% higher risk of infertility problems compared to non-smokers. On the other hand, those who have already quit the habit show a 25% lower risk of difficulties getting pregnant. The review of 44 studies, involving more than 60,000 men, demonstrated an association between smoking and erectile dysfunction, ejaculation problems, and reduced semen quality.

Secondhand smoke also represents a growing concern, especially for couples seeking assisted reproduction treatments. WHO data indicates that smoking can halve the chances of success in procedures such as in vitro fertilization. Women exposed to secondhand smoke face higher rates of infertility and lower monthly conception probabilities.

In light of new types of nicotine products, such as electronic cigarettes, WHO recommends caution and more research on their effects on reproductive health. The organization suggests that health professionals proactively advise people planning families about the risks of tobacco, offering evidence-based support and treatment for those struggling with the habit.

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