Leg cramps can be relieved by the following methods: first, to carry out local physical therapy of the legs, including red light, microwave, infrared, salt bag heat compress, fumigation of Chinese medicine, so that the local muscles can be relaxed. Second, we should take proper calcium tablets, drink more milk and get more sunlight to prevent calcium deficiency. Third, to find out the cause of leg cramps, find the original cause, such as nerve compression caused by, or herniated disc caused by leg cramps, or sciatic nerve compression caused by leg cramps, find the specific cause for the treatment of the original cause, so as to relieve leg cramps. Fourth, in addition, usually exercise more, to prevent muscle atrophy, balanced nutrition.