Urinary incontinence while walking belongs to stress incontinence, which may be caused by pelvic floor muscle relaxation, surgical injury, and also due to obesity and other factors. 1. Pelvic floor muscle relaxation: if the women who have given birth many times, or women after menopause, can be due to the vagina vaginal wall and the pelvic floor support tissue tension is weakened or missing, walking incontinence may occur. 2. Surgical injury: common in men with radical prostatectomy, or after urethral swelling, urethral sphincter electrolysis, due to damage to the external urethral sphincter, resulting in urinary incontinence. 3. Obesity: Obesity may lead to an increase in abdominal pressure, the phenomenon of stress incontinence. The above phenomenon may also be caused by other factors, we should go to the regular hospital in time, by the professional doctor for comprehensive diagnosis, to avoid delaying the condition.