White Shadow on Penis

Q. I have developed a tinea on my penis. It is like a white shadow in the skin of my penis. What should I do?

A. Tinea cruris, often called “jock itch,” is not usually a white shadow on the skin of the penis. It generally shows up in the folds of the groin. Usually it causes pain and itching between the scrotum and thigh skin. This is easily treated with antifungal creams.