Urinary incontinence sling surgery is a tension-free suspension of the midurethra (TVT-O) in cases of stress urinary incontinence, and is the main surgical procedure used to treat stress urinary incontinence. Stress urinary incontinence is most common in middle-aged and elderly women and is mainly manifested by urine leakage when abdominal pressure increases, such as when coughing, running or laughing, which seriously affects the patient’s quality of life. Stress incontinence is mainly related to the relaxation of the pelvic muscles and ligaments, which can lead to a decrease in urethral tone and cause stress incontinence. Tension-free suspension of the mid-urethra is performed by suspending a tape under the urethra to enhance urethral tone and thus solve the problem of urinary incontinence. The procedure is effective in treating stress incontinence, with an efficiency of more than 95%, and is less invasive and has fewer complications. In addition, about the more concerned about the pressure incontinence for sling surgery after the recurrence of the problem, from the clinical point of view, the chances of recurrence after surgery is also relatively rare, generally speaking, the efficiency of ten years, are more than 85%, overall this surgery, is a minimally invasive surgery, generally speaking, after the surgery, the first 2-3 days can be discharged from the hospital. In addition, some patients ask, “What is the cause of difficulty in urination after I have had a mid-urethral tension-free suspension (TVT-O)? There are three possibilities to consider for difficulty in urination after surgery: 1. wound pain during urination after TVT-O surgery affects urination; 2. the patient temporarily does not adapt to the change in the anatomical position of the urethra after surgery: 3. the TVT-O surgery sling is too tight and causes mechanical obstruction of the urethra. If conservative treatment of urinary difficulties is ineffective for 3 months, transvaginal urethral release should be done. It has been reported in the literature that conservative treatment of dyspareunia after sling surgery is ineffective, and transvaginal urethral release can disappear in 85% of patients with symptoms of dyspareunia, while urinary incontinence does not recur.