There are several reasons for itchy testicular skin in men: first, consider skin allergy, because male testicular skin is a hidden part, and poor permeability, easy to sweat and humidity lead to allergic phenomena. Secondly, men suffering from scrotal eczema, small rashes on the skin surface, if the male perineal skin is infected with fungus or bacteria will also lead to itchy skin, which can be relieved by applying erythromycin ointment. Again, consider that men suffering from prostatitis, kidney deficiency and other diseases, symptoms such as waiting for urine, incomplete urination, waist and knee soreness, etc., which can also be accompanied by itchy scrotal skin symptoms, it is recommended to seek medical attention and further treatment under the guidance of a doctor. Men wear cotton, loose underwear in daily life to ensure good breathability to avoid local allergies or triggering scrotal eczema, and wash the perineum daily to keep the area clean and clear to avoid the invasion of bacteria and other pathogens.