Weakness of urination without impulse may be caused by urethral stones, excessive masturbation, prostate hyperplasia, and so on. 1. urethral stones: urethral stones cause obstruction of the urethra, which may lead to the phenomenon of weak urination without energy. 2. Masturbation too often: appropriate masturbation is not obviously harmful to the body, but masturbation is too frequent, may lead to urine without power, so the phenomenon of urine without power. 3. prostate hyperplasia: male patients due to the prostate volume becomes larger, will press the bladder to cause urinary weakness symptoms, so that the phenomenon of urinary weakness without impulse. Weakness and lack of urge to urinate can also be seen in other factors, such as neurogenic bladder, etc., it is recommended to go to the hospital, through the appropriate examination, to clarify the specific causes.