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Chan School of Public Health. Men who most frequently wore boxers had significantly higher sperm concentrations and total sperm counts when compared with men who did not usually wear boxers, according to new research led by Harvard T. The findings of this study, conducted in the Fertility Clinic at Massachusetts General Hospital, suggest that certain styles of men's underwear may inhibit production of sperm. While previous research has shown that elevated scrotal temperatures can adversely affect testicular function, studies on whether and how different styles of underwear may impact sperm production have been inconsistent. For this study, the largest of its kind to look at underwear and semen quality, researchers collected information and semen samples from men who were part of couples that were seeking treatment at a fertility center.
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Is self-reported type of underwear worn associated with markers of testicular function among men at a fertility center? Men who reported most frequently wearing boxers had higher sperm concentration and total count, and lower FSH levels, compared to men who did not. Elevated scrotal temperatures are known to adversely affect testicular function. However, the epidemiologic literature on type of underwear, as a proxy of scrotal temperature, and male testicular function is inconsistent. This is a cross-sectional study including male partners of couples seeking infertility treatment at a fertility center —
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