Symptoms of hepatic encephalopathy are related to the staging. Stage I manifests mild behavioral abnormalities, stage II manifests disorientation, stage III manifests lethargy, and stage IV manifests loss of consciousness. 1. Stage I manifestation (prodromal stage): patients have mild personality and behavioral abnormalities, such as euphoria and agitation or indifference, trance, slurred speech, disheveled clothing, and urinating and defecating, etc. Occasionally, there may be fluttering tremor, that is, when the patient’s arms are stretched out flat and the fingers are spread apart, there is a lateral deviation of the upper limbs, accompanied by rapid and irregular fluttering tremor. 2. Stage II manifestations (pre-coma): the above symptoms are aggravated, and there are orientation disorders, which are manifested as confusion of the concept of time and place, often with hallucinations, wrong sleep time, alternating drowsiness and excitement, inability to complete simple calculations, and fluttering-like tremor. 3. Stage III performance (lethargy): patients gradually enter lethargy from sleepiness, but can be awakened. The patient responds to pain and other stimuli, and occasionally has transient agitation or hallucinations, and a fluttering tremor may be elicited. 4. Stage IV performance (coma stage): the patient’s consciousness is completely lost and cannot be awakened. In shallow coma, there is still a reaction to the boundary stimulus, but in deep coma, all kinds of reflexes disappear, muscle tone decreases, pupils can be dilated, and light reflex is weak or disappeared. Paroxysmal convulsions, high fever, hyperventilation, etc. may occur. When the above symptoms occur, the patient should go to the hospital in time and receive standardized treatment under the guidance of the doctor.