Lumbar pain and sore feet are considered to be related to lumbar disc herniation, spinal stenosis, strenuous activities and other factors. 1. Lumbar disc herniation: When a lumbar disc herniation occurs, the lumbar disc will compress the nerve root and cause back pain, and can radiate to the feet through the sciatic nerve to cause pain. 2. Spinal stenosis: A herniated disc or osteophyte can cause narrowing of the spinal canal, which in turn presses on the spinal cord or nerve roots, resulting in low back pain and radiating pain to the lower extremities, as well as pain in the feet. 3. Strenuous activities: engaging in heavy labor or strenuous exercise may cause injury to the muscles of the waist and feet, resulting in aseptic inflammatory reaction causing pain. Back pain and foot pain may also be related to other causes, it is recommended to consult a doctor in time to clarify the cause, and under the guidance of the doctor to carry out regular treatment.