Lumbar disc herniation right leg pain can be caused by inflammatory stimulation and nerve compression and other conditions. 1. Inflammatory stimulation: in mild lumbar disc herniation, the nucleus pulposus has not yet directly compressed the nerve root, but the right side of the body can still show pain and numbness, mainly due to the inflammatory reaction and release of inflammatory factors at the fibrotic fracture site, which can lead to edema of the nerve root, triggering the performance of the right leg pain. 2. Nerve compression: In the case of moderate-to-severe lumbar disc herniation, the protruding nucleus pulposus can directly compress the nerves and nerve roots in the spinal canal, and nerve compression can occur in the right side of the lumbar region, buttocks, lower limbs and other regions, leading to pain and numbness in the right leg and other symptoms. When a herniated lumbar disc occurs in the right leg pain, you should consult a doctor in a timely manner, under the guidance of a specialist to actively carry out the treatment, which will help to relieve the pain and other uncomfortable symptoms as soon as possible.