Always cramps in late pregnancy can be solved by the following methods: First, daily calcium supplements or consume calcium-rich foods, such as milk, while supplementing vitamin D or more sunshine to promote calcium absorption, can treat muscle cramps caused by hypocalcemia. Second, adjust the diet structure, avoid eating a lot of meat, too much protein intake can cause the accumulation of acidic metabolites in the body, resulting in intra-muscular ionic disorders, which can lead to leg muscle cramps. Third, avoid overwork, overwork will make muscle strain, easy to cause leg cramps, moderate stretching of the legs after work every day, and insist on hot water foot soak to relieve muscle fatigue. Fourth, pay attention to warmth, prevent the leg muscles from getting cold.