Leg cramps are generally related to calcium deficiency, cold stimulation, overexertion and local nerve compression. When the cramp acute attack, do not rush to bend to retrieve the leg, try to tense the part of the cramp, while the five toes are tensed upward, the body leaned forward, the leg do not fight bending, and then pull hard with the hand trigger toes, adhere to a period of time after the cramp pain will be reduced. After strenuous exercise lactic acid buildup, pay attention to the side to pat the leg muscles, so that the muscles of the legs are relaxed, which helps restore normal blood circulation and prevent cramp attacks. In addition, in daily life, we should pay attention to the appropriate amount of calcium, more sunshine, pay attention to local warmth, do not get cold, after a long time standing or walking can be soaked feet before going to bed, massage the legs to strengthen local blood circulation.