Cramps in the calves during sleep should be actively identified, the most common causes may be calcium deficiency, vascular occlusion, excessive exercise and irritation from cool air. Calcium supplements and vascular interventions should be taken. 1. Calcium deficiency: the most common cause may be calcium deficiency, then you can check the blood calcium, bone metabolism index, and even check the bone density. If the cramps are caused by calf calcium deficiency and low blood calcium, then calcium and vitamin D can be supplemented appropriately, and anti-osteoporosis treatment should be carried out if necessary. 2. Vascular occlusion: Ultrasound examination of the blood vessels of the lower limbs should be carried out to see whether there is occlusion of the blood vessels of the lower limbs, causing ischemia of the calves and causing cramps in the calves. If it is clear that it is caused by occlusion of blood vessels in the lower limbs, then interventional therapy should be carried out in vascular surgery to improve the blood supply of the calf in order to alleviate the problem of calf cramps. 3. Excessive exercise: Calf cramps can occur due to lactic acid buildup and muscle fatigue caused by excessive exercise. You can take the local hot compresses to promote blood circulation, so that the muscles relax, if the muscles appear obvious pain, you can use topical anti-inflammatory pain stickers and other drugs to relieve muscle pain. 4. Cool wind stimulation: sleeping because of the cool wind stimulation can cause calf cramps, need to pay attention to calf warmth. Calf cramps, pay attention to not directly beat the muscle, you can straighten the leg, grab the toes, force to make the toes dorsiflexion, and gently massage the calf muscle, can relieve the symptoms of cramps. Calf cramps itself is generally not a serious disease, but it is still recommended that patients clarify the cause of the disease, if necessary, timely medical treatment, to prevent frequent occurrences.