I am 21yrs old and i still bed wet . had my bladder checked(ultrasound) and no problem was found. how can i stop?

Need more tests.: Having a normal bladder ultrasound result is certainly encouraging, but more testing is needed. One recommended test would be a urodynamic study, which assesses the muscular functioning of the bladder muscle and the sphincter muscle - there may be a muscular issue involved here. As well, a 24 hour urine collection will help ascertain the composition of the urine - glucose, protein, infection?