The renal ganglion is a complex anatomical formation that is not related to the kidneys or urinary tract. This is a collection of nerve fibers located between the renal artery and the renal vein. The renal ganglion plays an important role in regulating blood pressure and hormonal processes in the body. It controls the activity of the ureters, which drain urine from the kidneys to the bladder. The ganglion can also affect the functioning of the pelvic muscles. In some cases, renal ganglion can cause lower back pain, so it is important to pay attention to this symptom and consult a doctor if it occurs.