The decision to undergo a sling operation should be made in consultation with your surgeon. You should discuss your medical history and all the available option for your condition. For a moderate to severe leakage of urine, any technique can be done, but the mid-urethral sling approach has been seen to be quite effective as this procedure is approved by the United State Food and Drug Administration (US FDA), the risk of complications is less, and the success rate is >90%.