Cramps on the hospital called muscle spasm, playing basketball foot cramps are common causes of muscle overwork, cold stimulation, electrolyte disorders, etc., can be stretched, hot packs, rapid supplementation of calcium and electrolytes. 1. Excessive muscle fatigue: stretching the cramped muscles through manipulation, so as to achieve the purpose of relieving cramps, tense cramp parts, straight legs, pulling the toes with the hand, the cramp will be reduced, a little rest after the cramp will disappear. 2. Cold stimulation: appropriate temperature can improve local blood circulation, so that the muscles get enough blood, improve spasm, relieve the symptoms of foot cramps. 3. Electrolyte disorders: When electrolyte disorders occur, calcium and electrolytes need to be replenished quickly. Calcium gluconate can be injected intravenously to rapidly increase the blood calcium concentration and relieve the cramps. If frequent cramps are difficult to relieve, it is recommended to go to the hospital in time, under the doctor’s examination, to take targeted treatment.