The hands always fall off the skin is one of the symptoms that may be lack of vitamin A, B. It may also be related to dry skin, tinea versicolor and so on. It is recommended that the patient can according to the situation, timely to the hospital. If you need to use drugs, need to be used under the guidance of a doctor. 1. Vitamin A: When deficient in vitamin A, symptoms such as dry skin, non-inflammatory spiny follicular papules, dry eyes, corneal softening or night blindness may occur. Oral vitamin A softgels can be supplemented with caution in chronic renal failure. 2. Vitamin B: When lacking vitamin B, foot odor, malnutrition, anorexia, pellagra, etc. may occur. Complex vitamin B tablets can be taken orally for treatment, with caution for patients with hepatic and renal insufficiency. 3. Dry skin: when the air is dry and the humidity is low, the skin is dehydrated and dry, and the skin always falls off on the hands. It is recommended to use white petroleum jelly, urea ointment and other moisturizing products to apply. 4. Tinea pedis: generally caused by red trichophyton and trichophyton fungus infection. The main manifestation of skin peeling, can be accompanied by obvious itching, if the disease progresses may also appear skin cracks, pustules, ulcers and other symptoms. There are many reasons why the hands always fall off the skin, it is recommended to go to the hospital in a timely manner, to clarify the cause of targeted treatment, such as the need to use drugs, need to be used under the guidance of the doctor.