There may be several reasons for the pain in the right leg at the same time as the right waist: first, lumbar disc herniation, when the lumbar disc herniation compresses the nerve roots, there can be symptoms of lumbar pain accompanied by leg pain, then there can be symptoms of sciatica, which can radiate from the buttocks to the calf and foot pain along the back of the thigh, then CT and MRI of the lumbar spine should be performed for diagnosis; second, lumbar spinal stenosis. Second, lumbar spinal stenosis, lumbar spinal stenosis, the proliferation of bone spurs and protruding discs can also compress the nerve, resulting in lumbar pain, accompanied by leg pain, serious cases will have limp symptoms, then we should carry out lumbar spine related examination for early diagnosis and treatment; third, lumbar spine slippage, serious lumbar spine slippage can also compress the nerve root and lead to lumbar pain, accompanied by leg pain symptoms.