If the symptoms of cramps keep occurring in the feet. First, if it occurs in middle-aged or elderly people, osteoporosis should be highly suspected. This condition is mostly caused by calcium deficiency, which can lead to spasm of the ligaments and tendons of the foot during weight-bearing activities of the foot, resulting in repeated foot cramps. Secondly, it is seen in patients who have been standing and walking for a long time, resulting in ligament and tendon strain in the foot, which can also lead to recurrent cramps in the foot during weight-bearing activities, especially for women who wear high heels regularly. Thirdly, in the case of middle-aged and elderly people with degeneration and hyperplasia of the foot bones, the hyperplastic bones stimulate the surrounding ligaments and tendons during weight-bearing activities of the foot, thus causing the symptoms of foot cramps.