Possible causes of back pain
There are many possible causes of back pain, some more serious than others. In many cases, the cause may be unclear but the pain will resolve itself in time. Of course, there are also back pain issues that require medical attention, so it’s useful to know what kind of symptoms to look out for.
Some of the more common causes of back pain include:
Muscle or ligament strain
This is one of the most common causes of back pain. It may not always be obvious what has caused the strain. Sometimes it can be the result of sudden movement, overuse, bending, twisting or heavy lifting over a period of time.
This kind of pain usually improves over time with self-care and is not usually a serious problem, but the pain can range from a dull ache to a severe stabbing sensation.
Disc bulge/ herniation
Most of us have disc bulges in our lower back, whether we are in pain or not. Discs are incredibly strong structures and, contrary to popular belief, cannot "slip."
They have a large fluid content and this fluid moves to help with taking the weight of our body and allow for our everyday tasks. At times these discs can become sensitive, and this can lead to high levels of pain.
If the nerves that sit near the discs are also affected by the sensitivity, they can send signals to the legs (in the lower back) or the arms (in the neck). The vast majority of times disc pain settles with advice and short-term activity modification but if issues persist, spread or get worse, speak to your GP.
Arthritis
Osteoarthritis is the most common form of arthritis, and the spine is one of the areas that’s most commonly affected.2 It happens over time as the cartilage between the vertebrae wears down, which can cause inflammation, grinding of bones and the formation of bony spurs called osteophytes.
It will often be detected on imaging, and diagnosed alongside a person’s signs and symptoms, rather than imaging alone.
Osteoarthritis can cause pain and stiffness, particularly in the lower back, and is more common in people after they’ve reached their mid-40s.3 Meanwhile, rheumatoid arthritis can also affect the spine by causing the immune system to attack tissue in the joints, causing pain and swelling.
Osteoporosis
This is a condition where we lose bone density – including the vertebrae – and as a result the bone is more at risk of fracture. It should be noted that osteoporosis itself isn’t painful. It’s usually only when a bone breaks or becomes fractured that people suffer pain as a result of osteoporosis.
>For more details about this condition, check out our guide to osteoporosis and bone health or our article on Understanding bone health.