Children’s fever, shivering and trembling may be infections, febrile convulsions, epilepsy and so on. 1. Infection: other pathogens such as viruses or bacteria invade the organism and interact with the organism, and fever, chills, vomiting and other symptoms can occur, so children’s fever, shivering and trembling may be caused by infection. 2. Febrile convulsions: the typical manifestation of fever followed by convulsive symptoms, convulsive seizures in children may be manifested as limbs or rigidity, accompanied by shaking or limb twitching. 3. Epilepsy: fever can trigger epilepsy, the main symptoms of epilepsy in children are muscle contraction, convulsions, loss of consciousness, etc. At this time, children may also appear fever, shivering, trembling symptoms. Children with fever, shivering and trembling can also be seen in other causes, parents are advised to take their children to the doctor as soon as possible, by a professional doctor to carry out the relevant treatment, to prevent the symptoms from worsening.