Tinea corporis is a disease caused by the bacterium Scombroid, which mainly affects the groin, but in severe cases can also affect the buttocks, perianal area, and external genitalia, etc. However, it is safe to say that it does not affect fertility because it mainly infects the superficial layer of the skin mucosa and does not affect the internal reproductive system. It is also possible to contract other STDs, especially chlamydia and mycoplasma, through unclean sexual contact, and these infections may affect fertility. Formal treatment.