Frequent foot cramps may be caused by calcium deficiency. In this case, it is recommended to complete the blood calcium test and bone density test in the hospital to assess and determine whether it is calcium deficiency, and if it is diagnosed as hypocalcemia, then attention should be paid to it and treatment should be given. First of all, dietary intake of relevant foods such as large bone broth, but also need to supplement vitamin D, calcium tablets, and more outdoor exercise, about 30 minutes a day, about a week after the blood calcium rechecked whether the normal range, if it has not returned to the normal range, then to clarify the cause of the reduced blood calcium.