Foot cramps may be caused by catching a cold, excessive fatigue, hypocalcemia and so on, and there is no fastest way to relieve them, patients can relieve them through daily maintenance and medication. 1. Cold: Cold legs lead to poor blood circulation in the legs, thus causing foot cramps. In this regard, patients need to pay attention to keep warm. 2. Excessive fatigue: prolonged exercise leads to fatigue of the leg muscles and accumulation of lactic acid in the muscle tissues, which will lead to the phenomenon of foot cramps. Patients need to take enough rest and massage their legs properly to relieve fatigue. 3. Hypocalcemia: when the calcium ions in the patient’s blood are lower than the normal range, muscle spasms, twitching of hands and feet and other symptoms will occur. Patients need to be treated with calcium and vitamin D supplements under the guidance of doctors. When the patient has foot cramps, it is recommended to consult a doctor in time for diagnosis and treatment by a professional doctor.