Jock itch and athlete's foot are both caused by fungal infections, and the fungi in these two areas are essentially the same. Most cases of jock itch are related to athlete's foot. Some people have athlete's foot and are careless in their daily lives, washing their socks together with their underwear, which can lead to cross-infection and the transfer of athlete's foot to form jock itch. Others may not have athlete's foot but develop jock itch due to poor hygiene habits, such as frequent visits to public baths for swimming or working in humid and hot environments, and bathing infrequently. Keeping small animals and not cleaning the fungi or molds from the animals in a timely manner can also lead to jock itch. Therefore, there is a certain relationship between these two conditions, but the correlation is not absolute. Once discovered, proper treatment in the early stages can cure it in a very short time.