Can scar tissue from back surgery cause pain to come back?

Medically reviewed by

Ajith Nair, M.D., board certified in Anesthesiology, Pain Medicine, Addiction Medicine, and Integrative Medicine

Last reviewed: July 2026

Yes, scar tissue that forms after back surgery can contribute to pain returning. Scar tissue is a normal part of healing, but when it forms around spinal nerves, it can tether or squeeze them, causing pain, tingling, or numbness even after the original surgery went well.

If you feel your pain faded after surgery and then gradually came back over months, scar tissue is one possible reason. The pain may feel similar to what you had before, or it may follow a nerve down your leg.

This pattern is common enough to have a name, failed back surgery syndrome, which does not mean the surgery was done wrong. It simply describes pain that continues or returns despite a technically successful operation, and scar tissue is one of several possible causes.

If you feel that ordinary injections have stopped helping the way they once did, scar tissue may be blocking the medicine from reaching the irritated nerve. That is a clue your specialist looks for.

A procedure called epidural lysis of adhesions can address this by breaking up the scar tissue and freeing the nerve. It is one option considered when scar tissue appears to be the driver and other treatments have fallen short.

If you feel your post surgery pain has a clear timeline, describe it. Telling your specialist when the pain eased, when it returned, and how it feels now helps them decide whether scar tissue is likely and whether a procedure to address it makes sense for your situation.

At Kentuckiana Pain Specialists, epidural lysis of adhesions is provided under the care of Ajith Nair, M.D., at our Louisville and Radcliff, Kentucky clinics. Our phones are answered 24/7 at (502) 995-4004, and a consultation is the best way to find out what fits your situation.

This is general information, not medical advice. Whether a treatment is right for you is determined by a physician after an evaluation.