Spring leg pain and soreness is related to calcium deficiency, cold, rheumatic diseases, exertion, lumbar disc herniation and other factors. Spring leg pain and soreness is related to the following factors: 1. Calcium deficiency: the lack of calcium can cause leg cramps, muscle and fascia and other soft tissues involuntary excessive contraction can appear pain and swelling. 2. Cold: slow blood circulation after catching a cold in the legs can cause pain. 3. Rheumatic diseases: such as rheumatoid arthritis, rheumatoid arthritis and other diseases involving the knee and ankle joints can cause pain and swelling in the legs. 4. Exertion: Excessive exertion can lead to strain on the leg muscles, and excessive exertion can cause an increase in lactic acid secretion, resulting in obvious symptoms of leg soreness and pain. 5. Lumbar disc herniation: If the leg is sore and painful, accompanied by lower limb numbness or lumbago, you should be alert to lumbar disc herniation. Spring leg pain and swelling may be caused by other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.