Percutaneous Tibial Nerve Stimulation is a low risk non surgical treatment for faecal incontinence (leakage of liquid or stools through anal canal). Bowel function is regulated by a group of nerves at the base of spine called the sacral nerve plexus. By stimulating these nerves through gentle electrical impulses, bowel activity can be changed. This involves inserting a small needle electrode near ankle in outpatient department and stimulate the nerves for about 30 minutes. This need to be repeated once a week for 12 weeks.