Itchy scrotal epidermis may be caused by scrotal dermatitis, scrotal eczema, contact dermatitis and other diseases. 1. Scrotal dermatitis: the etiology of scrotal dermatitis is not clear, and it is considered to be caused by a variety of factors such as mental factors, gastrointestinal dysfunction and other factors. The main symptoms of patients are scrotal epidermis itching, pimples, vesicles and so on, so patients may have scrotal epidermis itching phenomenon. 2. Scrotal eczema: the cause of scrotal eczema is not clear for the time being, mostly due to mental, genetic, skin irritation and other factors. Patients will have scrotal skin itching, swelling, erosion, flushing and other symptoms, so patients may have scrotal epidermal itching. 3. Contact dermatitis: contact dermatitis is caused by skin contact with exogenous substances, and the main symptoms of patients are itching, burning, swelling and pain. Therefore, the patient may appear scrotal epidermal itching phenomenon. To summarize, if the patient appeared scrotal epidermis itchy symptoms, should be timely to the hospital, to identify the specific causes of the disease, under the guidance of the doctor for treatment.