What is a herniated disc and does it always cause pain?
Nicola Tik
Being told you have a herniated disc can feel worrying, particularly if the words came with a scan image and not much explanation. This article walks you through what a herniated disc actually is, what it means for how you feel, and why the picture is often more hopeful than it first appears.
Between each pair of bones in your spine sits a disc, a small structure with a tough outer ring and a softer, gel-like centre. The disc acts as a cushion, absorbing load and allowing the spine to move. A herniation happens when the soft inner material pushes through a weakness in the outer ring, like the filling of a sandwich pressing out through the bread.
This can happen gradually over time, or following a particular movement or load. It is one of the more common findings on spinal scans, particularly in adults from their thirties onwards.
Not necessarily, and this is one of the most important things to understand. Research consistently shows that a significant number of people have disc herniations visible on imaging and no pain at all. The size or appearance of a herniation on a scan does not reliably predict how much discomfort someone experiences or how limiting it will be.
What causes pain when it does occur is usually the disc pressing on or irritating a nearby nerve, or the inflammatory response that follows a herniation. Both of these tend to reduce over time.
Most disc herniations do settle well. The body has a remarkable ability to reabsorb herniated disc material over weeks to months, and the inflammatory response that drives a lot of the early pain tends to reduce significantly with time. Many people who have had a very painful acute episode find that things improve considerably without surgery or procedures.
This does not mean every herniation resolves completely or that recovery is always quick. But it does mean that a difficult few weeks or months is not necessarily a picture of how things will always be.
One of the most alarming aspects of a herniated disc for many people is pain, tingling, or numbness that travels into the leg. This is often called sciatica, a term for irritation of the sciatic nerve, which runs from the lower spine down through the buttock and into the leg.
Sciatica from a disc herniation follows a very recognisable pattern. It tends to travel from the lower spine into the buttock, down the back or side of the thigh, and sometimes as far as the foot. It can feel like a sharp, burning, or electric sensation, and it may be accompanied by numbness or a feeling of weakness in the leg.
Alarming as it feels, referred leg pain of this kind is a sign of nerve irritation rather than nerve damage in most cases. As the disc settles and inflammation reduces, the leg symptoms usually ease alongside the back pain, often before the back pain itself fully resolves.
If you notice any new weakness in the leg or foot, it is worth speaking to your GP.
Staying gently active is one of the most consistently supported approaches in the early period after a disc herniation. Complete rest tends to slow recovery rather than help it.
The movements that tend to feel more comfortable are those that keep the spine in a neutral or gently extended position. Walking at an easy pace is usually well tolerated and genuinely useful. Gentle extension movements, lying face down and propping yourself onto your forearms for a minute or two, are something many people find helpful, though comfort varies.
Positions that load the spine in flexion, deep forward bending, prolonged sitting, or lifting with a rounded back, tend to be more provocative in the early stages and are worth avoiding temporarily rather than permanently.
Some things to try:
If you would like a guided movement routine for your spine, VIDA has a short video you can follow at your own pace.
Herniated disc pain often fluctuates, with better days and harder days, particularly in the early weeks. A difficult day does not mean things are getting worse overall. Temporary increases in pain with certain movements are common and do not indicate further damage.
Your VIDA pain check-in is a good way to track how things are shifting over time, so you can see the broader pattern rather than just the difficult days.