The symptoms of convulsions in 5-month-old babies are different depending on the cause of the convulsions: first, if the baby has a convulsion when he has a high fever, the symptoms of convulsions are head tilted back, tonic clonus of the hands, some have eyes rolled up, typical symptoms of high fever and convulsions. Second, if a 5-month-old baby has convulsions, head tilted forward and then hands or hands and feet leaning towards the trunk, showing typical nodding and holding ball-like movements, consider that the patient has infantile spasms, this time it is necessary to ask the family whether there is a genetic history, to go to the hospital to do a cranial MRI and EEG examination, consider the possible existence of epilepsy. Thirdly, if a 5-month-old baby has convulsions, if the symptoms of convulsions show that the fingers or toes are fan-shaped and open, ask the patient how the feeding situation is, and also consider the symptoms of low calcium convulsions.