The World Health Organization (WHO) has issued a public health warning linking tobacco use directly to human infertility, noting that women who smoke face a 40 percent higher risk of reproductive complications. With global infertility affecting one in six people, health authorities urge clinical providers to address smoking cessation during family planning.
Impacts on Female Fertility and Assisted Reproduction
Tobacco consumption interferes with female reproductive biology and lowers the efficacy of medical fertility treatments. Clinical data compiled by the WHO demonstrates that smoking reduces live birth rates and cuts the success rate of assisted reproductive technologies, such as in vitro fertilization (IVF), by 50 percent.
Secondhand smoke presents similar dangers, exposing non-smoking partners to reproductive vulnerabilities. However, cessation yields measurable recovery: women who stop smoking lower their infertility risk by 25 percent compared to active smokers.
Male Reproductive Health and Sperm Degradation
Reproductive harm from tobacco extends equally to male partners. An analysis of 44 medical studies covering more than 60,000 men confirmed that tobacco consumption degrades sperm parameters and disrupts sexual health.
Male smokers experience increased occurrences of:
- Erectile dysfunction and ejaculation complications
- Azoospermia (total absence of sperm)
- Decreased sperm motility and structural abnormalities
Risks from Alternative Nicotine Products
While data on electronic cigarettes, hookahs, and smokeless tobacco continues to develop, the WHO warns that these alternatives may carry similar reproductive risks. Medical providers are advised to actively screen couples planning pregnancies for all forms of tobacco use and provide evidence-based cessation support.