Foot cramps are generally pain caused by muscle spasms in the feet, a variety of reasons can lead to muscle spasms in the feet, common causes of muscle spasms are cold stimulation, muscle strain, calcium deficiency, etc.: 1, cold stimulation: some patients like to wash their feet in cold water or take a cold shower, etc., there will be blood vessels in the cold stimulation, spasm contraction, may cause poor local blood circulation, resulting in foot cramps 2, muscle strain: such as walking or exercise for too long, will lead to the accumulation of acidic metabolites in the local muscles, can cause muscle cramps; 3, calcium deficiency: common in adolescents in adolescence, growth and development too fast, the body lacks calcium elements supplementation is not timely, low blood calcium levels, causing muscle cells overexcited, easy to cause muscle cramps; recommended that patients should strengthen the calcium supplement, diet In terms of diet, patients should eat more food containing protein and vitamins, and choose to take calcium tablets; usually, they should pay more attention to rest to relieve muscle strain; at night, they can also soak their feet to relieve fatigue and accelerate blood circulation in local muscles.