The sense of incomplete urination refers to the sense that there is still urine in the bladder after urination, possible causes: 1. Cystitis has not completely healed, which is the bladder mucosa is still congested and edematous, there will always be irritating factors in the bladder. But because the amount of urine stored in the bladder is not much, so patients repeatedly go to the toilet to urinate, each time the amount is not much, after urination still feel that there is a drop in the bladder, the possible feeling of wanting to urinate, which belongs to the normal reaction to inflammation. After the inflammation is completely controlled, the mucous membrane returns to normal and the irritating factors are removed, the feeling of not being able to urinate will disappear naturally. 2. There is a foreign body irritation in the bladder, such as stones, tumors or stones at the end of the ureter. The foreign body always stimulates the bladder mucosa to produce chronic inflammation and stimulates the bladder mucosa to produce frequent contractions, when the patient has the urge to urinate, but the amount of urine is not much each time, and the feeling of incomplete urination is felt after urination because the irritating factor is not removed. The feeling of incomplete urination will disappear when the occupying irritant is removed, and the feeling of incomplete urination can return to normal after removal of stones or tumors, for example.