Itchy hands after bathing may be caused by physiological factors, or may be caused by contact dermatitis, eczema, water source urticaria and other pathological factors. 1. Physiological factors: too much force in the bath leads to greater friction of the hand, thus causing itching. Or excessive hand cleaning, resulting in dryness and itching. 2. Contact dermatitis: the skin is allergic to shower gel or other toiletries, and when the hands come into contact with the above items during bathing, it will cause inflammatory reaction on the hands, resulting in erythema, pimples and so on, accompanied by itching. 3. Eczema: Eczema is an inflammation of the superficial dermis and epidermis caused by a variety of internal and external factors. It can be caused by environmental conditions such as temperature changes, resulting in itchy hands after bathing, which may be accompanied by erythema, papules and other symptoms. 4. Water urticaria: water urticaria is a kind of urticaria, often in the skin after contact with water, immediately or a few minutes after the appearance of the wind, and accompanied by itching, and water temperature is not. Itchy hands after bathing can also be seen in other causes, in the exclusion of physiological factors should be timely medical treatment, by the doctor to clarify the cause of targeted treatment.