Many elderly people, especially those over 60 years old, feel itchy skin all over the body in winter, first the calf and then the waist, back, especially the place where the belt is tied, every night before going to bed as soon as the itchy skin can not stand, must be scratched all over the body to sleep, this is senile pruritus. Senile pruritus: (1) due to the physiological decline in hormone levels in the elderly, sebaceous glands and sweat glands secretion function of the reduced water content of the skin, lack of sebum moisturizing, making the skin surface dry, rough, easily triggered by the stimulation of the surrounding environmental factors. Especially in the cold and dry winter climate, human skin also becomes dry and rough, making the nerve endings in the skin more easily stimulated and itchy. (2) and habits: the elderly like to use hot water bathing, too many times and scrubbing; in addition, the use of alkaline soap or medicinal soap, these are already dry skin lost the sebum moisturizing. Therefore, the elderly should not take too many baths, generally once a week is appropriate; water temperature should be controlled at about 40 ℃; choose a neutral skin care bath soap, it is best to take a bath while the skin is moist coated with more oil (such as petroleum jelly, urea, glycerin, etc.) of skin care products. In addition, attention should also be paid to the intimate underwear must choose cotton texture, to avoid chemical fiber components in the dry winter electrostatic, because electrostatic around the body can produce a large number of cations, it can make the human skin moisture reduction, increased dander caused by itching. In addition, some poor quality clothing now contains too much formaldehyde, formaldehyde will also stimulate the skin caused by itchy skin. Therefore, the elderly should try to choose cotton clothing, newly purchased underwear must be washed with water before wearing. (3) Related to the living environment: the climate itself is dry in winter, and indoor heating takes away the moisture in the air to make the skin even drier. Therefore, the elderly should use a humidifier or more water plants indoors, or simply put a pot of water on the heater, through the evaporation of water to increase the humidity of the indoor air, to relieve itchy skin will help. (4) related to dietary habits: many elderly people suffer from “three high” (i.e. high blood pressure, high blood sugar, high blood fat), afraid to eat fatty foods, adhere to the vegetarian diet. In fact, this is not good for health. Fat can generate heat to help people withstand the cold and moisturize the skin. Moderate intake of high-fat foods can prevent the occurrence of pruritus in the elderly. Fatty foods also help in the absorption of fat-soluble vitamins such as vitamin A and E, which are useful in preventing dry and aging skin. In addition, the elderly should eat a light diet, avoid smoking, alcohol, strong tea and coffee, and use less spicy and irritating food, because these foods can stimulate the skin and aggravate itching. In addition, it is also necessary to drink an appropriate amount of water (eight glasses of water per day) to replenish the body’s moisture. (5) The last point should especially draw the attention of elderly patients, geriatric pruritus is not only related to the physiological changes of the elderly, but also related to many systemic diseases. For example, endocrine and metabolic diseases: diabetes, hyperthyroidism (hyperthyroidism); liver and gallbladder diseases; kidney diseases; blood system diseases; malignant tumors as well as indigestion and constipation, allergic factors, mental factors, etc. Anal pruritus is also associated with hemorrhoids, anal fissures, prostatitis, etc. Therefore, a comprehensive physical examination and relevant laboratory tests should be made while treating pruritus in elderly people with pruritus. (6) If you still feel itchy skin after taking the above measures, you can use some topical antipruritic drugs: camphor spirit, trimethoprim nitrone rub, corticosteroid ointment, etc. In severe cases, oral antihistamines can be taken, but attention should be paid to other diseases and various medications that elderly patients are taking. Finally, we would like to remind every elderly patient to maintain a happy mood and divert attention from the “itch”, otherwise the more you scratch, the more itchy it will eventually lead to skin thickening and even secondary infection. In addition, medication should be used carefully, especially oral medication, and should be administered at a hospital under the guidance of a doctor.