Cramp that convulsions, the elderly sleep calf lateral convulsions, the main consideration with cold, hypocalcemia, epilepsy and hyperthermia related, it is recommended to relieve the convulsions in a timely manner, as soon as possible after seeking medical attention, to clarify the cause of the cause of the corresponding treatment treatment, including warmth, massage, hot compresses and drug therapy. 1. Cold: if it is due to cold, fatigue caused by twitching calves, usually before going to bed can be more warm water to soak your feet, sleep with attention to foot warmth, appropriate with some leg and foot massage, appropriate sunbathing, etc., can play a role in preventing some. 2. Low blood calcium: the elderly are prone to low blood calcium concentration, which can lead to cramps in the calves while sleeping. You need to pay attention to calcium and vitamin D supplementation. 3. Epilepsy: Epilepsy is caused by abnormal excitation foci in the skull, which causes muscle twitching in the limbs. Cramps in the lower legs can occur. Treatment needs to find the intracranial lesion for targeted treatment. The seriousness of the disease consider surgical treatment. 4. High fever: when the elderly have a high fever, the whole body will produce muscle twitching and spasms, there will also be the phenomenon of the elderly sleeping calves out of the cramps. Need to carry on physical cooling and take aspirin and other drugs. If the elderly often occur in the sleep of the outer calf convulsions, and the duration of a long time, it is recommended to seek medical treatment as soon as possible, improve the relevant examination to clarify the cause of the disease, and timely accept the appropriate treatment.