Why is my foot numb with my low back pain?

Numbness or tingling in the foot usually means a spinal nerve is being compressed or irritated, often by a disc bulge, swelling, or tight muscles. This is common with sciatica and disc-related back pain. If ignored, numbness can progress to weakness, so it’s important to get it checked early. Physiotherapy helps by correcting posture, decompressing the irritated nerve, and restoring healthy movement through targeted exercises and manual therapy. This speeds up recovery and prevents long-term nerve damage.