The cauda equina is a bundle of nerve roots communicating with your brain. If it becomes squeezed, you can develop cauda equina syndrome (CES). You may need surgery, physical therapy, or medications.

Cauda equina syndrome (CES) occurs when the nerve roots in the lumbar spine become compressed, cutting off feeling and movement. CES is a rare condition, affecting an estimated 1 in 33,000–100,000 ...