The more you scratch, the more itchy your testicles become, which may be caused by scrotal eczema, pubic lice disease and other diseases. 1. Scrotal eczema: scrotal eczema is an allergic skin disease caused by the interaction of multiple internal and external factors. It leads to localized skin flushing, the appearance of millet-sized papules, papules, small blisters, scratching leads to erosion, peeling. It is often accompanied by significant itching. 2. Pubic lice disease: pubic lice disease is a parasitic disease, is a contagious skin disease caused by pubic lice repeatedly biting and sucking blood, can be attached to the root of the pubic hair, resulting in localized itching, red rash, scratching leads to testicular desquamation. Testicle peeling accompanied by more scratching the more itchy and other symptoms, it is recommended to seek timely medical attention to clarify the cause.