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The World Health Organization (WHO) has issued a stark warning regarding the detrimental impact of tobacco use on reproductive health, revealing that smoking significantly reduces the chances of conception. According to a comprehensive review of scientific studies conducted between 2000 and 2026, the global health body highlighted that tobacco consumption is a major contributor to infertility, a condition that currently affects approximately one in six people of reproductive age worldwide. The WHO defines infertility as the inability to achieve pregnancy after 12 months or more of regular, unprotected sexual intercourse.
The findings underscore a particularly high risk for female smokers, who are 40% more likely to experience infertility compared to non-smokers. For men, the consequences are equally concerning; tobacco use is linked to increased instances of erectile dysfunction, ejaculation problems, and a general reduction in sperm quality. Beyond the direct biological impacts on natural conception, the WHO report also indicates that smokers face significantly lower success rates when undergoing assisted fertility treatments, suggesting that the chemical components of tobacco interfere with medical interventions aimed at pregnancy.
Despite the alarming statistics, the report offers a measure of hope for those looking to start a family, noting that the negative effects are not entirely irreversible. Women who quit smoking can reduce their risk of infertility by as much as 25%, demonstrating the immediate health benefits of cessation for reproductive outcomes. However, the WHO cautioned that the current data primarily focuses on conventional cigarette use. While newer products like e-cigarettes are gaining popularity, there is currently limited long-term data available to fully determine their specific impact on fertility, though health experts advise caution.
The warning also extends to non-smokers, as the review identified passive smoking—or second-hand smoke exposure—as a significant factor that negatively affects fertility levels. As infertility continues to be a growing global health concern, the WHO emphasizes that reducing tobacco consumption is a critical step in improving reproductive health. This latest guidance serves as a call to action for public health officials to integrate tobacco cessation programs more robustly into broader reproductive health and family planning services.