Scrotal dampness refers to the scrotal skin without obvious organic lesions, but there are abnormal symptoms such as excessive sweating, dampness or coldness, and long-term damp scrotum is prone to inflammation and itching. There are two reasons for scrotal dampness: First, it may be caused by physiological factors, because the local environment in which the scrotum is located in the heat can not be distributed in a timely manner, it will lead to local temperature rise, accompanied by an increase in the secretion of sweat glands in the scrotal skin, which can lead to scrotal dampness, physiological sweating is more or more sedentary for a long time, or wear tighter underwear are likely to be induced. Second, pathological factors, such as chronic prostatitis, varicocele or scrotal eczema and other diseases, may appear scrotal humidity.