The causes of children’s convulsions are many and complex, and are categorized into the following situations according to the type of seizure: 1. Tonic clonic seizure, the most common type of seizure in the clinic, there are tonic phase and clonic phase during the seizure, which mainly manifests the whole body of skeletal muscle extension or muscle tonic contraction, accompanied by loss of consciousness, apnea, clonic tonic, followed by a generalized seizure, short violent flexion twitching, and then there are often headaches, drowsiness and weakness. 2. Tonic seizure, sudden generalized tonic contraction with loss of consciousness, the child is fixed in a certain position for about 5-60 seconds, common angular retrusion, body, neck, head tilt, body rotation, mandatory open mouth and other postures, often accompanied by postictal symptoms after the fall. 3. Clonic seizures, rhythmic twitching of limbs, trunk, and facial muscles, without the components of tonic seizures. 4. Loss of consciousness, loss of consciousness, not falling, not falling to the ground, for a few seconds after the return of consciousness, continue the original activities, the seizure can not remember just the seizure. 5. Muscle clonic seizures, often manifested by sudden nodding, leaning forward or backward, accompanied by rapid lifting of the arms. In mild cases, the child may feel shaking, in severe cases, the child may fall down, for the whole body and part of the muscles, skeletal muscles, a short period of rapid contraction. 6. Dystonic seizures, mainly manifested by sudden loss of consciousness, impaired consciousness, sudden nodding, limb dropping or falling movements. There may also be some atypical focal seizures. It is recommended that children with the above manifestations should seek prompt medical attention for clear diagnosis and treatment.