Hello My name is Dr.Arianisa Bajrami Thank you for your question on HCM I do understand your concern about your aunt.Let me explain everything. Stress urinary incontinence (SUI) which primarily occurs in women, is the involuntary loss of urine caused by physical activities, such as laughing and sneezing.Even the pressures of pregnancy and childbirth, and even aging, can contribute to SUI. To create a bladder sling, a surgeon uses strips of tissue or a synthetic material like mesh to create a pelvic hammock around the bladder neck and urethra to keep them closed during normal activities. Patients who reported post-surgery issues have prolonged difficulty urinating or they incur new symptoms of incontinence, specifically urgency. The risks associated with the surgery also include infections at screw or staple points, internal bleeding or injury to an organ. But the most common side effect are urinary tract infections Best to do is to talk with an surgeon and explain to him your concern So these are the complication of slings.Hope your aunt can get better oon Please ask me any questions you have Best regards