A few peeling skin on the hands of adults may be caused by vitamin A deficiency, but also contact dermatitis, ringworm and other skin diseases. Vitamin A belongs to the fat-soluble vitamins, which has a protective effect on the surface layer of the skin, and can keep the skin in a soft and plump state, thus strengthening the water-locking function of the skin. If you are deficient in vitamin A, you will experience dry skin and abnormalities in keratin metabolism, which can easily lead to peeling and accumulation of flakes. Peeling of the skin on the hands may also be caused by other reasons, such as contact dermatitis, ringworm, etc. Contact dermatitis is caused by local irritation or allergy, and ringworm is caused by fungal infection. If the adult hand peeling symptoms, should be timely to the hospital dermatology examination, clear cause, in the guidance of professional physicians for treatment, so as not to delay the condition.