Stress Urinary Incontinence (SUI) refers to involuntary leakage of urine from the external urethral opening when abdominal pressure increases such as sneezing or coughing. Symptoms are involuntary urine leakage during increased abdominal pressure such as coughing, sneezing, or laughing. The sign is an involuntary leakage of urine from the urethra that can be observed during an increase in abdominal pressure. Urodynamic examination shows involuntary leakage of urine on filling cystometry in the presence of increased abdominal pressure without contraction of the detrusor muscle. This embarrassing condition is medically known as stress urinary incontinence and has a high prevalence of about 40% in middle-aged and older women. How does stress incontinence occur? At the lower end of the urethra there is a circular sphincter that controls the discharge of urine from the bladder to the urethra. Normally, people can control this through nerves and muscles, and when a certain amount of urine is stored in the bladder, the brain controls the urinary system, including the urethral sphincter, to start urination. Urinary incontinence can occur when any part of the urinary system becomes dysfunctional. Stress incontinence is caused by dysfunction of the urethral sphincter, and it occurs more often in middle-aged and older women mainly because of the decrease in estrogen levels after menopause, which directly affects the function of the urethral sphincter. Increasing pressure on the bladder when coughing, blowing one’s nose, laughing or trunk movements can lead to urinary incontinence . There are many types of urinary incontinence, but stress incontinence is the most common. The severity of incontinence can be divided into four degrees: one degree of occasional incontinence when coughing; two degrees of incontinence when holding the breath or straining; three degrees of incontinence when standing upright; and four degrees of incontinence when standing upright or lying down. In fact, there are several ways to treat urinary incontinence, and doctors will use them depending on the patient’s condition. The first method is behavioral therapy: that is, urinating on a regular basis, every 1 to 2 hours, to reduce the chance of incontinence. You can also consciously and gradually extend the time between urination sessions while urinating regularly. The second method is medication, such as M receptor antagonists. The new generation of M receptor antagonists, solifenacin, can act more directly on the bladder, bringing stronger efficacy while reducing side effects such as dry mouth and constipation, which can help patients to better improve their quality of life. Another option is surgery, which is mainly used for patients who are difficult to treat with other methods and whose symptoms are severe. Therefore, patients who suffer from stress urinary incontinence should not force themselves to go to the urology department of the hospital in time.