Soreness in the left foot needs to be alerted to lumbar disc herniation, vascular lesions in the lower limbs, arthritis and other diseases. Lumbar disc herniation will compress the nerve roots innervating the left lower limb, and the symptoms of left foot pain will appear, usually accompanied by numbness. Lower extremity vascular lesions such as lower extremity venous thrombosis, varicose veins, etc. will cause venous reflux obstruction, will also appear in the left foot pain symptoms. Left foot rheumatism, rheumatoid arthritis, gouty arthritis and other diseases can also cause soreness. Trauma to the left foot can cause muscle ligament and tendon strains, and in severe cases, even fractures, which can also cause soreness. Soreness in the left foot may also be caused by walking for a long time or weight-bearing caused by physiological soreness, usually can be relieved after rest. If there are symptoms of left foot pain, it is recommended that the patient go to the hospital for medical examination to clarify the cause of the disease and receive regular treatment.