Sore feet should be alert to lumbar disc herniation, ankylosing spondylitis, rheumatoid arthritis and other diseases, but does not exclude the normal physiological phenomenon, should be timely consultation to find out the cause. 1. Lumbar disc herniation: mainly caused by chronic strain injury of lumbar vertebrae, age-related changes, congenital developmental abnormalities, incorrect lumbar posture, hereditary factors, lumbar injuries, pregnancy, obesity, etc.; most of the patients manifested lumbar pain and sciatica, accompanied by radiating pain in the lower limbs, numbness, and weakness, which affects the patients’ walking and lumbar activities. 2. Ankylosing spondylitis: belongs to polygenic genetic disease, the onset of the disease may be related to some bacterial infections; patients may manifest as low back pain, spinal ankylosis, hip, knee or ankle joint pain, followed by the patient may occur hunchback. 3. Rheumatoid arthritis: a chronic, systemic autoimmune disease, most patients with symmetrical hands, wrists, feet and other joints swelling and pain as the first manifestation, often accompanied by morning stiffness, can be accompanied by fatigue, low-grade fever, muscle pain, weight loss and other systemic symptoms. In addition, prolonged standing or walking may cause foot pain, which is a normal physiological phenomenon. It may also be caused by other factors, such as lower extremity blood circulation disorders. If the pain is persistent, you should consult a doctor to clarify the cause and give targeted treatment.