Itchy palms may be related to physiological factors such as dry climate, or it may be caused by ringworm, herpes, and other diseases. 1. Physiological factors: dry climate may trigger dry skin, dehydration, and so on, which will lead to itchy palms. 2. Ringworm: the appearance of ringworm is related to dermatophyte infections, such as Trichophyton rubrum and Trichophyton mustelii. Clinical manifestations are flaking, blisters, and dryness, itching and other symptoms. 3. Sweat herpes: the main manifestation is the appearance of intensely itchy blisters on the hands and feet, which will appear peeling after absorption and drying. The appearance of sweating herpes is considered to be caused by local allergies, contact with irritants and dermatophyte infections. There are many causes of itchy skin on the palms of the hands, and after excluding physiological factors, patients are advised to seek medical examination to clarify the cause.