If you have leg cramps in the middle of the night, you need to see if you are cold, especially when the weather turns cold or the quilt is not covered properly, it is easy to lead to cold legs and cause spasmodic cramps, usually pay attention to warmth, avoid cold, prevent the occurrence of symptoms. The occurrence of leg cramps in the middle of the night may also be caused by calcium deficiency in the body, especially some pregnant women or adolescent developmental period of the population, the demand for calcium is relatively high, easy to show symptoms of calcium deficiency such as cramps. In this case, you need to pay attention to eat more beans, dairy and other calcium-rich foods in the diet, but also targeted supplementation of calcium gluconate and vitamin D, more outdoor exercise. If you have leg cramps in the middle of the night, you need to exclude the possibility of lumbar disc herniation, which is usually accompanied by lumbar pain and discomfort, you can do lumbar CT examination to clarify, and do lumbar physical therapy, traction and other treatments.