Sacral nerve stimulation is method of treating patients with overactive bladder, fecal incontinence and also chronic pelvic pain caused by the spinal condition known as Cauda Equina Syndrome. It has also been used in the treatment of erectile dysfunction and constipation, and as an alternative to surgical interventions in patients with chronic anal fissures. This is a form of electrical stimulation therapy in which a removable device is implanted below the skin to deliver a small electrical current to the sacral nerve at the bottom of the spine. This causes the muscles in the pelvic floor and urethral sphincter to contract and increase in strength over time. Many patients with urinary urgency and fecal incontinence have had their symptoms disappear completely following this type of therapy.