The baby fever 39.5 degrees convulsions, can be seen in febrile convulsions, intracranial infections, etc., to check what needs to be decided according to the causes of convulsions, such as intracranial infections need to improve the lumbar puncture and other checks. 1. Febrile convulsions: a common disease in pediatrics with genetic predisposition. In the presence of fever, such as fever 39.5 degrees, can cause abnormal brain cell discharge, convulsive symptoms, considering the disease of the child need to do a test to clarify the causes of fever, such as routine blood, C-reactive protein, Mycoplasma pneumoniae infection, etc., if necessary, need to improve the electroencephalogram and other tests. 2. Intracranial infections: such as bacterial meningitis, viral encephalitis, clinical fever and convulsions that are the symptoms of convulsions, for this type of children need to actively improve lumbar puncture examination, cranial nuclear magnetic and related blood tests, such as routine blood, C-reactive protein, coagulation function and blood culture. If your baby has a fever of 39.5 degrees and is having convulsions, there may be other causes, so we recommend that you actively consult a specialist to evaluate your baby and follow the doctor’s instructions to complete the relevant tests.