The reason why you want to urinate when you wash your hands may be psychological stress reaction or obsessive-compulsive disorder.
1. Stress reaction: caused by the sound of water flowing when washing hands, similar to the sound of urination stimulating the sense of hearing, belonging to the body is stimulated by the emergence of a psychological stress reaction. This situation is occasional, usually does not last forever.
2. Obsessive-compulsive disorder (OCD): a psychological or mental disorder. OCD usually occurs due to trauma caused by some unexpected events. Usually manifested as repeated thoughts and actions, and can not control the mental disorder, for example, after washing their hands, they must force themselves to urinate, once the formation of this habit will continue to appear as soon as they wash their hands want to urinate.
Patients often want to urinate as soon as they wash their hands, next time you can try to urinate first and then go to wash your hands to see if the situation will occur again, if you urinate after washing your hands and then the idea of urination, need to be vigilant about the existence of obsessive-compulsive disorder, the patient needs to go to the hospital psychiatry or psychological examination in a timely manner, timely treatment, in order to prevent the aggravation of the condition.