The double skin hindesæk which surround the testicles (seeTestikelsnoning) normally contains a small amount of liquid, which has a lubricating function. Sometimes it can take disorder in the production of liquid to gather a larger amount of fluid in the skin bag, which manifests itself as a soft swelling of the purse. There is no pain. Water Brok occurs sometimes by inflammation or damage, but in most cases can not detect any reason. Emphasis is harmless and very common especially in older men.