Elderly people with itchy scalp may be related to age factor, improper cleaning, fungal infection, seborrheic dermatitis, skin dryness and other conditions. 1. Age factor: with the gradual increase in age, the elderly body functions and resistance will gradually decline, the body’s moisture will gradually decrease, skin dehydration will appear scalp itchy phenomenon. 2. Improper cleaning: If the elderly do not pay attention to personal hygiene, long-term hair washing, may lead to sweat and dirt in the scalp area accumulation, scalp itching, odor and other phenomena. 3. Fungal infection: If the scalp area is infected by fungi, causing tinea capitis, the patient will have scalp pimples, flaking, local itching and other symptoms. 4. Seborrheic dermatitis: If there is seborrheic dermatitis in the scalp area, it will be manifested as itchy scalp, dandruff, erythema and hair loss and other symptoms. 5. Dry skin syndrome: If the elderly have dry skin syndrome, not only the scalp will be itchy, other parts of the body may also have itchy symptoms. It is recommended that the elderly consult a doctor in time, do a systematic examination, clarify the cause of the disease and then actively treat it, so as to avoid delaying the disease.