There are physiological and pathological causes of scrotal dampness. Pathological factors include scrotal eczema, which is mainly treated by medication such as glucocorticoids and immunomodulators. 1. Physiological factors: men are more obese, the external environmental temperature is too high, long-term work in a high temperature environment, underwear is too tight and other factors can lead to the symptoms of scrotal humidity. Active participation in physical exercise, choose the right underwear, feel uncomfortable timely rest and other methods can effectively alleviate the symptoms. 2. Pathological factors: the main symptoms of scrotal eczema are scrotal itching, irregular papules and patches, and scrotal moistness. Commonly used medication such as tacrolimus ointment, fusidic acid, mupirocin, mometasone furoate ointment and so on. The choice of medication needs to be made under the guidance of a doctor. When patients experience discomfort, they should go to the hospital immediately.