The common causes of itchy palms include scaly keratosis pilaris, hand eczema, contact dermatitis and so on. 1. scaly keratinized tinea versicolor: this disease is mainly caused by fungal infections, including red trichophyton, tinea versicolor, gypsum-like microsporidium, etc., manifested as diffuse roughness of the skin of the hand, thickening, flaking, dryness, itching and other symptoms. 2. Hand eczema: the hands have more chances to contact with external stimuli, so the incidence of eczema is high, but it is generally difficult to determine the exact cause of the disease. Most of the slow onset of the disease, manifested as dry dark red spots on the hands, localized infiltration and hypertrophy, the edge of the clearer, often forming cracks in winter, accompanied by itching. 3. Contact dermatitis: the etiology of this disease is more, including primary irritants (such as sulfuric acid, phosphoric acid, sodium hydroxide, copper sulfate, salicylic acid, etc.), as well as contact sensitizers (such as leather products, rubber products, hair dyes, facial wipes, etc.), occurring in the skin of the hands, manifested in the hands of itchy skin peeling, mossy changes and other symptoms. Itchy skin peeling of the palms of the hands of more reasons, it is recommended that the patient to the regular hospital dermatology consultation, follow the doctor’s instructions to clarify the diagnosis, reasonable treatment, to avoid delaying the condition.