Scrotal itching is relatively common, commonly due to factors such as eczema, infection, inflammatory stimulation, etc. Specifically, the following reasons. 1, high temperature and humidity in the pubic area: physical laborers are common, especially in the summer, high temperature, sweat, humidity and poor ventilation in the pubic area, the scrotal skin is affected by sweat impregnation, friction of underwear, etc., resulting in itching. Wearing too tight jeans, non-absorbent and non-breathable nylon underwear can also cause itching. 2, vitamin B2 deficiency: can lead to scrotal inflammation. Changes such as erythema, dryness, desquamation, papules and crusts appear in the scrotum and are accompanied by itching. At the same time there can also be keratitis, tongue inflammation and mouth ulcers. 3.Inflammation: Scrotal inflammation caused by fungi such as Candida scrotalis and ringworm involving the scrotum can cause scrotal itching. 4, other diseases: scrotal area of neurodermatitis, allergic dermatitis, scabies, eczema, etc. can have itching. 5, internal and external factors: people with allergies, people with chronic mental tension and emotional changes are prone to the disease; in addition, people suffering from some diseases, such as chronic digestive diseases, gastrointestinal disorders, endocrine disorders and metabolic disorders, are also prone to the disease under the action of external factors. In addition to the previously mentioned causes, daily attention to avoid the stimulation of tobacco and alcohol, avoid spicy and irritating food, and pay attention to the regularity of work and rest will reduce the appearance of scrotal itching symptoms. Therefore, in order to avoid scrotal itching, daily attention should be paid to avoiding tobacco and alcohol stimulation, avoiding spicy and stimulating food, paying attention to the work and rest routine, developing good hygiene habits, changing underwear regularly, choosing loose underwear, and prohibiting unclean sex.