What can cause a seizure in a baby?

Brain electricity: Seizures are caused by abnormal electrical signals in the brain. There can be many different causes of this in a baby. Some are benign, such as a rapidly rising fever. Other causes include a brain abnormality present at birth, bleeding in the brain, or deprivation of oxygen for a period of time. Epilepsy is a primary disorder of abnormal electrical activity. Neurologists specialize in this.

Many causes: Metabolic abnormalities including inborn errors of metabolism, low blood sugar, infections of the brain, both bacteria and viral, brain injury, either during the pregnancy or afterward i.e. trauma such as shaken baby, There are seizure syndromes that usually occur within the first 18 months of age. If you have concerns consult a pediatric neurologist for evaluation and management.