1. Grand mal seizures: also known as generalized tonic clonic seizures. They account for about 1/3 of seizures, mostly around 1 year old or between 14-17 years old. Grand mal seizures can be divided into four periods: (1) aura phase: with dizziness and stomach discomfort. (2) Tonic phase: sudden loss of consciousness, fall to the ground, head back, limbs tonic, due to the spasm of the septal muscles, the patient emits a “lamb-like” roar, blue face, dilated pupils, respiratory pauses, lasting tens of seconds. (3) Clonic phase: the whole body muscles have rhythmic jerking, often biting the tongue, foaming at the mouth, may be accompanied by incontinence, generally lasting 1-3 minutes (4) Recovery phase: it generally takes tens of minutes to wake up, the patient can not recall the process of seizures, the whole body pain, weakness. Individual patients may have frenzy, running and screaming, hitting and destroying things during the recovery period. 2, petit mal seizures: also known as aphasic seizures, petit mal seizures. The typical performance is that the patient has a brief loss of consciousness, most of the complete loss of consciousness, occasionally shallow impairment of consciousness, some understanding of the surrounding, can hear the question, but can not answer. Brief and frequent episodes of unconsciousness are characteristic. In most cases, each episode lasts 4-20 seconds and does not exceed 1 minute, and occurs several to dozens of times a day. They occur suddenly and end abruptly. It is characterized by sudden interruption of speech and activity, staring with both eyes, occasionally turning upward, sometimes pale, without aura. After the seizure stops, the original activity continues. 3, psychomotor seizures: also known as complex partial seizures. It refers to the background of disorders of consciousness, often with delusions, hallucinations and automatism. It is also known as temporal lobe epilepsy because it is mostly caused by temporal lobe lesions. The age of onset is relatively late in all types of epilepsy. About 40% of patients have aura at the onset of the disease, feeling upset stomach, hallucinations, hallucinations, vertigo, nausea, fear, etc. Clinical manifestations can be divided into: (1) Impaired consciousness only: should be distinguished from aphasic seizures, in which the impairment of consciousness is more than 1 minute, while aphasic seizures are mostly within 1 minute. (2) Recognition symptoms: memory impairment is the most common. Some patients have familiarity with people or objects that are unfamiliar to them, which is called “déjà vu”. In some cases, a sense of unfamiliarity may arise inexplicably for familiar people or environments. (3) Affective disorder: It can produce episodes of emotional abnormalities, such as sudden feelings of sadness, anger, fear, impending disaster, impending doom, etc. (4) Mental sensory symptoms: such as illusion, hearing abnormalities when others talk to them as if they were separated by a wall. Visual illusion feels like a veil over what you see. Seeing the ground undulate, seeing objects as if they were distorted. Seeing objects larger, seeing objects smaller. (5) Psychomotor symptoms: Automatism is common. Involuntary movements of the oropharynx, such as sucking, chewing, swallowing, etc. Some patients rub their hands on their clothes, raise their hands in the air and make circles, etc. Sometimes the more complex automatism shows sleepwalking and neurosis, etc. (6) Complex type, manifested as a combination of multiple complex symptoms. Some sudden outbursts of impulsivity, and even produce illegal behavior. Such as injury, destruction, self-inflicted injury, suicide, murder, etc. 4, limited seizures: also called focal seizures or focal-related seizures. It is a part of the body rhythmic jerking, lasting a few seconds, clear consciousness, if the epileptic discharges extended, can be extended to the half body or the whole body.