What Causes Pain to Travel From Your Back Into Your Leg?
Have you ever had lower back pain that seems to travel into your buttock, thigh or even further down your leg? This can be uncomfortable and sometimes worrying, particularly when you aren't sure whether the problem is coming from your back, hip, muscles or nerves. Pain that travels from the back into the leg can have several different causes, and the location and type of symptoms can provide useful clues.
One common cause is irritation of a nerve in the lower back, often referred to as sciatica. The sciatic nerve travels from the lower spine through the buttock and down the leg. When a nerve becomes irritated, symptoms can include sharp, burning or electric-like pain, as well as tingling, pins and needles, numbness or weakness. A disc bulge or herniation can sometimes contribute to nerve irritation, but it isn't the only possible cause.
The joints and muscles around the lower back can also refer pain into the leg. The small joints of the spine can contribute to aching through the lower back and buttock, while muscles around the hips and pelvis can produce pain that feels surprisingly far away from the area creating it. Pain from the hip or sacroiliac region can also sometimes be experienced around the buttock or thigh, making it difficult to identify the source without an assessment.
The pattern of your symptoms matters. Pain that stays around the lower back and buttock is different from pain that travels below the knee with numbness or tingling. Similarly, symptoms that change with sitting, walking, bending or certain movements can provide useful information. However, there isn't always a simple distinction, and experiencing pain below the knee doesn't automatically mean you have a disc problem.
This is why a thorough assessment is often more useful than trying to diagnose your symptoms based on location alone. A healthcare professional can consider your history, movement, strength, sensation and neurological function to help determine what may be contributing. In some circumstances, further medical investigation or referral may be appropriate.
The good news is that many common causes of back and leg pain can be managed with appropriate movement and rehabilitation, depending on the underlying cause. Staying active within your comfortable limits is generally preferable to prolonged bed rest, and gradually rebuilding strength, mobility and confidence can be an important part of recovery.
If your back and leg pain is persistent, worsening or interfering with your everyday activities, consider having it assessed. Seek urgent medical attention if you develop new bladder or bowel changes, numbness around the groin or saddle area, or significant or rapidly worsening weakness in your legs. Understanding what may be contributing to your symptoms is the first step towards choosing the most appropriate next step.
