What it is
Each of the discs between your lumbar vertebrae has a tough outer ring and a softer gel-like center. When the outer ring weakens or tears, the inner material can push outward and press on a nerve root nearby. That pressure is what causes the leg pain, numbness, or weakness — not the disc itself, but the nerve it's irritating.
Disc herniations are common. Many people have visible herniations on imaging without any symptoms at all. What matters clinically is whether the herniation is generating real, localizable symptoms that match the nerve being compressed.
How we approach it
The first step is always to confirm the diagnosis and identify which specific nerve is involved. An MRI typically shows the herniation clearly, but imaging alone isn't enough — we also need a physical exam that matches the pattern.
Most lumbar disc herniations resolve or improve significantly without surgery. The majority of patients get better with some combination of time, targeted physical therapy, activity modification, anti-inflammatory medications, and — when appropriate — a precisely placed epidural steroid injection.
When surgery is considered
Surgery becomes a reasonable option when conservative care has been tried and the patient still has meaningful pain, progressive weakness, or loss of function that's interfering with their life. Rarely, a severe herniation with bowel, bladder, or major motor involvement (cauda equina syndrome) requires urgent surgery.
When surgery is the right move, the most common procedure is a microdiscectomy — a targeted operation to remove just the piece of disc pressing on the nerve, without disturbing the rest of the spine.