Egg skin medically known as scrotal epidermis, scrotal epidermis the more you scratch the more itchy cracking skin may be scrotum inflammation, the use of assistive devices, scrotal eczema and other causes. 1. Scrotal inflammation: scrotal inflammation is a more common infectious disease of the reproductive system in men, the general symptoms of the scrotum area redness, molting, and even pain and itching. Because the scrotum is more secret, coupled with clothing friction, poor ventilation so it is extremely easy to cause microbial infections leading to inflammation. 2. The use of assistive devices: the frequent use of assistive devices will cause long-term friction and stimulation of the skin at the testicles, which will lead to the scrotum epidermis itchy or even cracked skin. 3. Scrotal eczema: scrotal eczema belongs to eczema, which is a kind of allergic skin disease. Mainly in the scrotum area lesions, often accompanied by intense itching, skin redness, severe blisters, scratching there is obvious ooze oozing, a few will also extend to the anus and penis. If the patient’s egg skin more and more itchy or even cracked skin, should be timely to the regular hospital. The cause of the disease is clear after the corresponding treatment.