The main reason why the testicles are always moist is because of fungal infection or scrotal dampness, which is more likely to be caused by these two diseases clinically can reach more than 90%. It is recommended that you do not scratch with your hands, which can easily lead to the spread of local infection. You should wash it with warm water every night and wipe it with a dry and wet towel, and you can use clotrimazole ointment topically. The normal course of the disease takes 2-4 weeks, do not choose to have intercourse during treatment, which can easily lead to cross-infection.