Very itchy hands may be related to contact dermatitis, eczema, ringworm and other diseases. 1. Contact dermatitis refers to the skin of the hands in contact with some kind of irritating objects or allergic substances and produce a kind of allergic phenomenon, the typical characteristic is itchy skin, may also appear erythema, pimples and so on performance. 2. Eczema is an inflammatory skin disease due to a variety of internal and external factors, and is clinically characterized by itching and recurrent erythema, papules, blisters and other lesions. 3. Ringworm is due to the skin of the hands because of the infection of ringworm bacteria and lead to a kind of skin disease, in the clinic can be manifested as blisters, peeling, and will be accompanied by different degrees of itching. Due to the influence of many factors, the specific circumstances need to ask the doctor for a face-to-face consultation.