Spinal cord stimulation (SCS) is a pain management technique involving the implantation of a device that emits electrical impulses to the spinal cord. These impulses modify pain signals before they reach the brain, often replacing them with a non-painful tingling sensation called paresthesia. The procedure typically begins with a trial phase, where temporary leads are placed in the epidural space near the spinal cord under local anesthesia. The leads are connected to an external pulse generator worn by the patient. Over the course of a week, the patient evaluates the effectiveness of the therapy. If significant pain relief is achieved, a pain management physician then performs the permanent implantation of the system, which includes placing permanent leads and an implantable pulse generator (IPG) under the skin, usually in the abdomen or buttocks.