Medically reviewed by Jurairat J. Molina, MD A circular rash is commonly caused by a fungal infection called ringworm. However, there are many rashes that look like ringworm but aren’t. They may be ...

It causes athlete's foot and the same fungus causes jock itch. and it can occur almost in coin shape patches although sometimes it can spread.... On the scalp, they start losing hair actually ...

It is more common in certain parts of the body. Ringworm on the feet (tinea pedis) is often referred to as athlete's foot. Ringworm on the groin (tinea cruris) is often called jock itch.