Plateau reaction is a common disease unique to the plateau region, which occurs when people enter the plateau at an altitude of more than 3000 meters and are in a low-pressure, low-oxygen environment. It can be divided into acute plateau reaction and chronic plateau reaction, and serious problems such as plateau pulmonary edema and plateau cerebral edema can occur in serious cases. The symptoms and treatment of plateau reaction are as follows: 1. Acute plateau reaction: mostly occurs within a few hours after entering a high altitude area from a low altitude area, with symptoms such as dizziness, headache, nausea, vomiting, palpitations, chest tightness, shortness of breath, blue lips and nail ends, weakness, loss of appetite, sleep disorders, reduced urine output, peripheral edema and so on. Most of the patients with mild cases can relieve themselves after 1-2 days, while patients with severe cases need to give oxygen, use diuretics, such as giving furosemide symptomatic treatment; 2. Plateau pulmonary edema: mostly develops 2-3 days after entering the plateau area, mainly manifested as breathing difficulty at rest, wheezing, coughing, coughing white or pink foamy sputum, and obvious wet rales can appear in the lungs. At this time, the patient should be allowed to rest quietly, inhale high-flow oxygen, and keep warm. Dexamethasone can be used to reduce the exudation of pulmonary capillaries and aminophylline to relieve bronchospasm. For patients without hypotension, nifedipine may be considered to reduce pulmonary artery pressure. If the patient has right heart failure, digitalis drugs and diuretics can be used; 3. Plateau cerebral edema: generally occurs 1-3 days after entering the plateau area, which can appear severe headache, vomiting, mental depression or euphoria, irritability, ataxia and staggering gait. In addition, consciousness disorders such as trance, blurred consciousness, drowsiness, and even coma can occur. In the treatment, we should increase the amount of oxygen, give dexamethasone, diuretics, high concentration of glucose to reduce the symptoms of cerebral edema, if there is also pulmonary edema and heart failure, usually do not recommend the use of mannitol dehydration therapy; 4, chronic plateau reaction: also known as delayed plateau reaction, refers to some people in the plateau after living for a certain period of time, the symptoms of acute plateau reaction has always been delayed, mainly for neurological signs and symptoms, in addition to In addition to acute plateau reaction symptoms, there may also be memory loss, inattention, indigestion, hand and foot numbness, facial swelling, etc. There may also be changes in heart rhythm, transient syncope, etc. Treatment requires patients to strengthen exercise, enhance adaptability to the environment, oxygen intake, and give glutamate, B vitamins, bromelain and internal Chinese medicine.