Itchy skin when taking a bath can be caused by urticaria, dry skin or allergy to shower gel. 1. Urticaria: These people can have the phenomenon of itchy skin when rubbing the skin in the bath, and there may appear on the surface of the phenomenon, red spots and so on. 2. Dry skin: a bath rubbing the skin will rub off a lot of old stratum corneum, may cause dry skin phenomenon, so when the skin is dehydrated, dry and prone to itchy phenomenon. 3. Allergy to shower gel: shower gel contains fragrance, polypropylene glycol, citric acid and other substances, some people use shower gel after shower caused by itching phenomenon, it may be a shower gel in a certain ingredient allergy symptoms, it is recommended to stop using this shower gel immediately. There may be other reasons for the above situation, it is recommended to go to the hospital in time to find out the cause, and follow the doctor’s instructions for symptomatic treatment.