Aquagenic urticaria is a rare form of physical urticaria. Aquagenic urticaria is a rare condition in which urticaria (hives) develop rapidly after the skin comes in contact with water, regardless of its temperature. This condition will appear regardless of the condition or temperature of the water, though there must be no skin lesion present to differentiate this condition from aquagenic pruritus or aquadynia. Aquagenic urticaria tends It most commonly affects women and symptoms often start around the onset of puberty, though infantile patients are equally susceptible to this condition. Patients going through puberty are the most likely to manifest symptoms of this condition.