Frequent sudden twitching of the body may be associated with overactivity, hypocalcemia, epilepsy, etc. 1. Excessive activity: If excessive activity during the daytime leads to muscle fatigue, lactic acid accumulation and other reasons, sudden muscle twitching symptoms can occur. 2. Hypocalcemia: the disease is related to vitamin D deficiency, intestinal absorption disorder, hypoparathyroidism, long-term low-calcium diet, renal insufficiency and other factors, which can cause sudden twitching symptoms. 3. Epilepsy: This disease is caused by highly synchronized abnormal discharges of neurons in the brain, with convulsive symptoms at the onset, and frequent convulsions when it is not well controlled. The body often suddenly twitching, should be timely consultation, for specific causes of symptomatic treatment.