Epilepsy is easily confused with the following diseases and needs to be identified. 1. Syncope, a temporary cerebral ischemia and hypoxia causing a sudden onset of a transient state of loss of consciousness in which the limbs are soft and no convulsions are visible. 2, hysteria, also known as hysteria, is mostly based on the sudden appearance of sensory, motor and vegetative nerve dysfunction or temporary mental abnormalities. Seizures are often associated with mood changes, susceptible to suggestion, more common in women. 3, episodic sleeping sickness, an irresistible sleep attack, mostly of unknown etiology, partly due to subthalamic or central gray matter lesions. 4, hypoglycemia, disorders of consciousness, weakness, sweating, etc. when blood sugar is too low. 5. Hyperthermic convulsions, which generally occur in children when the body temperature rises suddenly with a brief generalized convulsive seizure with loss of consciousness. 6.Migraine, characterized by recurrent migraine or bilateral headache. In a few cases, there are visual, sensory, motor or emotional disturbances before the attack or during the headache. 7.Twitching-obscene syndrome, mainly seen in children, is characterized by blinking, facial twitching, making faces, hyperactivity, involuntary vocalization, and repetitive obscenities. 8, transient ischemic attack, mainly refers to the local loss of cerebral kinetic energy caused by vascular ischemia in the internal carotid artery or vertebral a basilar artery system, usually within a few minutes the symptoms are completely relieved, can be repeated. 9. Apnea syndrome, also called breath-holding episodes, often occurs when mental stimulation, such as pain, panic, dissatisfaction, or unfulfilled demands. The above conditions are not difficult to identify based on EEG, medical history, symptoms and signs.