The dangers of highly dysrhythmic EEG may include the formation of status epilepticus, refractory epilepsy, accidental injury, cerebral edema, intracranial hypertension, etc. 1. Status epilepticus, refractory epilepsy: the cause of high EEG dysrhythmia is secondary discharges in brain tissues due to traumatic brain injury, infection, stroke, autoimmune abnormality, which may eventually develop into refractory epilepsy or status epilepticus if no timely action is taken. 2. Accidental injury: High EEG dysrhythmia means that the EEG shows abnormal waves such as spikes and slow waves, whole-brain multiple spikes and slow waves, or spikes and slow compound waves, which is due to epileptic seizures caused by various reasons, and the patients with epileptic seizures are at a certain risk of traumatic injuries such as falls, tongue bites, and bone fractures. 3. Cerebral edema and intracranial hypertension: the EEG of patients with full-blown epileptic seizures will show highly dysrhythmic results, and if the patients do not receive timely treatment to terminate the seizures, the patients may suffer from cerebral edema and brain hernia due to persistent epileptic seizures, and in serious cases, even life-threatening injuries may occur. Highly dysrhythmic EEG is a dangerous sign, and it is recommended that patients receive prompt treatment to avoid accidental injury or development of status epilepticus.