Men’s lower body is always a little damp mostly due to clothing problems, do not pay attention to clean or chronic prostatitis and other factors. 1. Clothing problems, if the underwear is too tight or bad material, a long time will lead to the local environment of the scrotum due to too closed and feel damp. 2. Do not pay attention to clean, if you do not pay attention to hygiene, in the exercise after the sweat is not timely cleaning, sweat accumulation will also have the feeling of moisture; in addition, if a long time do not take a bath do not change the clothes will also appear moisture. 3. Chronic prostatitis, when a man suffers from this disease, scrotal humidity is the more common manifestation, there will also be ejaculation fast, incontinence and other symptoms. In addition, there are many other diseases that can cause moisture in the perineal area, such as varicocele, etc. It is recommended to consult a doctor in time for relevant treatment measures.