What causes lower back pain and numbness in the left leg?

Aug 24, 2022 Source: Cainiu Health
Disease description:

Recently, I've been feeling constant pain in my lower back, accompanied by numbness in my left leg. What could be causing lower back pain together with numbness in the left leg?

Doctor's answer (1)
Dr. Lin Yunfei
It is generally caused by trauma or similar reasons. In such cases, trauma may lead to bone breakage or fractures, possibly resulting in spinal cord nerve damage, thereby causing symptoms such as lower back pain and numbness in the left leg. When the lower back experiences external force, pressure within the lumbar spinal canal may increase, causing the nucleus pulposus to protrude. Patients need specific diagnosis through lumbar X-ray, CT, or MRI imaging.