Bladder insufficiency

When the bladder of a normal adult male is full, the volume is about 250 ml; in females it is about 300 ml; the residual urine after urination should be below 10%. If the urination function is abnormal, so that there is too much urination, or even unable to urinate at all, it is urine retention. According to the emergence of symptoms, they can be divided into acute and chronic urinary retention.