The flaking of the body may be caused by physiological factors, and may also be caused by pathological factors, such as suffering from lack of fat eczema or psoriasis. 1. Physiological factors: when the climate is dry, the skin sweat, oil secretion is too little, resulting in dry, dehydrated skin, the phenomenon of flaking can occur. 2. Pathologic factors: (1) Lipid-poor eczema: eczema is a relatively common skin disease, which is an inflammatory skin disease caused by many factors, of which lipid-poor eczema is one of the special types, which is characterized by dry, flaky skin, fine cracks, accompanied by itching, and the phenomenon of flaky skin can occur. (2) Psoriasis: Psoriasis is generally related to genetic factors, autoimmune factors and infectious factors, etc. The main symptoms are red patches on the skin, covered with silvery-white scales, and usually have symptoms such as dry skin and itching. At the same time, dandruff may also be caused by certain hereditary skin diseases, such as ichthyosis. It is recommended that patients with dandruff go to the dermatology department of a specialized hospital to get a clear diagnosis and follow the doctor’s instructions to adopt a suitable treatment plan, so as to avoid delaying the condition.