A superior hypogastric neurolysis is an injection of a local anesthetic and sometimes a neurolytic agent (disrupts nerve pain signals) causing a deliberate numbing effect to the nerves that supply the organs in the pelvis. These nerves are located on each side and in front of your lower spine. The hypogastric plexus nerves carry sensation to the bladder, uterus, ovaries, prostate, lower intestines, rectum and other areas within the pelvis. The use of a neurolytic agent such as alcohol or an electric energy called Radiofrequency interrupts the nerve fibers and produces long-lasting pain relief. Superior hypogastric block is typically performed for severe, chronic pelvic pain caused by cancer or other diseases.