Leg cramps are muscle spasms in the legs, most commonly in the calf gastrocnemius muscle, is a muscle spontaneous tonic contraction, in addition to the calf gastrocnemius muscle can also involve the toes, the onset of pain is obvious, lasting between a few seconds to a few minutes, often in the night seizures, can wake up the pain, after kneading and pressing the spasm of the muscle, the symptoms can be slowly relieved, most of the causes of its calcium, in addition to the likes of It is mostly caused by calcium deficiency, in addition, localized cold and neurovascular compression may also cause. If the patient has this situation every day, it is recommended to go to the endocrinology department to improve the blood calcium and bone density scanning and other tests, to clarify whether the calcium deficiency, after the diagnosis is clear, you can take Vitamin D calcium chewable tablets orally every day, two tablets at a time, in the morning. Normally, we should pay attention to more sunshine, in sleeping and sitting for a long time, to avoid the blood vessels and nerves of the legs under pressure, usually appropriate exercise, promote muscle activity and blood circulation.