Facial palsy is generally categorized into acute stage, recovery stage, and sequelae stage, etc., which can be differentiated by specific manifestations. Facial palsy, also known as facial nerve paralysis, is a condition in which the facial muscles and movements are abnormal and lost, and is divided into two types: central facial palsy and peripheral facial palsy. Central facial paralysis refers to upper motor neuron paralysis, which is often secondary to stroke, intracranial tumor and other diseases. Peripheral facial paralysis refers to lower motor neuron paralysis, mostly caused by nerve inflammation and cold. 1. Acute stage: the acute stage of facial paralysis is 1~2 weeks, which is the progress of facial nerve inflammation and edema, and the patient will have crooked mouth, drooling, leakage of speech, etc., and the symptoms will reach the peak within 48 hours after the onset of the disease. 2. Recovery period: within 1 month or 3 months after the symptoms of facial paralysis appear, the symptoms of facial paralysis show signs of improvement after active treatment, some patients have completely recovered, and some patients have not yet recovered completely, and there may be some residual symptoms, entering the sequelae period. 3. Sequelae stage: After 3 months of facial paralysis, the patient is still unable to recover completely, and facial muscle atrophy and involuntary twitching are often seen. Facial paralysis patients need to seek medical treatment in time and under the guidance of professional doctors to help the condition recover as soon as possible.