Cramps are a relatively common phenomenon in everyday life. It is not simply due to calcium deficiency that causes cramps. There are many causes of cramps, and the first thing that should be done is to clarify the cause. If you go to a regular hospital to check that the cramps are due to calcium deficiency, taking calcium tablets can help to improve the symptoms. Cramps can also not be ruled out due to cold stimulation, such as cold in the legs or hands, which leads to muscle contraction and causes spasms. Prolonged local compression or prolonged compression of the leg at night can lead to poor blood circulation, which can cause cramps. It cannot be ruled out that low blood calcium, weakness, or recent high-intensity sports have caused a buildup of metabolites in the body, which can lead to cramps. There are many reasons for cramps, so don’t take calcium tablets blindly in the early days, it is best to go to a regular hospital for relevant examinations and further treatment according to the results.