If a patient is found to have convulsions and suspected that it may be epilepsy, physical examination, EEG, MRI, lumbar puncture and other examinations can be performed to determine or confirm the diagnosis of epilepsy. The clinical examinations are as follows: 1. Physical examination: different manifestations of convulsions may suggest different types of epilepsy. If the patient is working, living, or studying, he or she suddenly yells and then falls to the ground. At this time, observe that the patient’s eyes roll upward or stare at a certain place, breathe heavily, may grind or gnash his teeth, and may even bite his tongue, while there will be tonic clonic seizures of the limbs, sometimes accompanied by urinary incontinence, usually grand mal seizures, tonic clonic seizures, and the seizures usually last 1-2 minutes and then stop. The patient may wake up sleepy, tired, fatigued, and with generalized pain. If the child is playing in the process, the reaction suddenly stops, the gaze is dull, lasts 3-5 seconds and then returns to normal, this situation is generally considered a petit mal seizure; 2. EEG: Patients with epilepsy can be examined by ordinary EEG, long-range or 24-hour EEG, etc. The earlier the patient goes to the hospital for EEG after a seizure, the more likely it is to produce a positive result. Patients who do ordinary EEG late or for a short period of time may not have seizures during the process of doing so, and the brain does not have abnormal discharges, so it is not easy to see the typical epileptic wave pattern, which is not conducive to diagnosis; long-range EEG or 24-hour EEG, or even video EEG, can diagnose whether the patient has seizures and whether there are abnormal discharges in the EEG during seizures, which can help improve the diagnosis rate; 3. MRI: To confirm the diagnosis of seizures MRI of the head is also needed to check whether the seizures are caused by structural abnormalities in the brain. Diseases that commonly cause seizures such as brain tumors, parasitic diseases, cerebral hemorrhage, cerebral infarction, head trauma, etc. Other imaging examinations such as CT, cerebral angiography, etc., also have a certain diagnostic role; 4. Lumbar puncture: if the patient has seizures accompanied by fever, drowsiness, lethargy, positive meningeal stimulation signs, etc., it is recommended to do a lumbar puncture to investigate whether the seizures are caused by encephalitis; 5. Other: such as blood biochemistry and electrolyte examination to clarify the patient’s underlying physical condition and whether there is infection or other abnormalities.