The causes of convulsions when boys get up include environmental factors, calcium deficiency, epilepsy and so on. 1. Environmental factors: when boys get up, due to the surrounding environment temperature is too low, by the cold environment of the influence of muscle spasms and convulsions. 2. Calcium deficiency: various reasons lead to calcium deficiency in the body, such as rapid growth and development, malnutrition, etc., causing muscle spasms in the body, which can be manifested as boys get up and twitch and other symptoms. 3. Epilepsy: the disease is mainly due to abnormal sustained discharge of neurons in the brain and produce symptoms, so that boys can wake up involuntary twitching of the limbs. There may be other reasons for boys to get up twitching, it is recommended that boys get up twitching to the neurology outpatient clinic in the hospital, improve the relevant examination, and actively cooperate with the treatment.