Cerebral thrombosis patients feel that the urine is not coming out with the damage of the urination center and the change of urination habits. 1. Damage to the urinary center: after cerebral thrombosis, if the damage to the paracentral lobule, it affects the urinary center, resulting in urinary obstruction, leading to neurogenic bladder, which can be manifested as urinary incontinence or urinary retention. 2. Change of urination habit: after cerebral thrombosis, patients become paralyzed and cannot walk on the ground, and need to urinate and defecate in bed. Some people can not urinate in bed because of sudden bedridden, so they have the symptom of holding urine and not urinating, which is mostly seen in female patients. If cerebral thrombosis occurs urine holding urine does not come out of the performance, should promptly seek medical treatment, give intervention and treatment.