The superior hypogastric plexus is a group of nerves in the lower abdomen/upper pelvis that controls functions in the pelvic area. It is part of the autonomic nervous system, which controls involuntary functions in the body, such as digestion and circulation. The plexus can be targeted for therapeutic intervention to treat chronic pain(s), such as pelvic cancer mediated pains or endometriosis. The medication delivered into the plexus generally includes a local anesthetic +/- a steroid. The procedure is performed under low dose fluoroscopic imaging guidance.