Scrotal dampness can be seen in many cases: 1. It may be normal, mainly because some people have particularly developed scrotal sweat glands, which tend to secrete too much sweat in an occlusive, hot environment, so the scrotum is prone to dampness. 2. It can be seen in acute scrotal eczema, which is mainly the body’s own allergic inflammatory skin disease and belongs to type IV allergic reaction. This disease can be triggered by a variety of internal factors and external stimuli, such as local touch chemicals, dyes, sweat impregnation, etc. can be induced. These patients are mostly allergic and may be related to hereditary IGA deficiency.3. It can also be seen in scrotal blood return disorders, such as varicocele. Due to the expansion of the varicose veins of the spermatic cord, the blood flow back to the scrotum can be impaired, so there will be fluid leakage from the surface of the scrotum and scrotal dampness will occur.