Pediatric hypocalcemia often appears nerve symptoms, muscle symptoms and other clinical manifestations, such as restlessness, tremor, muscle twitching, etc., as follows: 1. Neurological symptoms: mainly increased neuromuscular excitability, irritability, tremor, convulsions, laryngospasm and asphyxia in severe cases. Hypocalcemia in preterm infants usually has no convulsions, often manifested as breath holding, apnea, lip bruising and so on. 2. Muscle symptoms: common in the baby’s hands and feet will produce involuntary twitching, which is also the most typical clinical manifestations. In babies with mild symptoms, there are only sensory abnormalities, and symptoms such as numbness and tingling will appear when the symptoms worsen. If your child develops these symptoms, it is important to consult a doctor in time to avoid delaying the condition and affecting the treatment.