When entering a plateau at an altitude of 3,600 meters, most people living in the plains will have a plateau reaction, and only a few people may not have a plateau reaction. If the plateau reaction is more serious, the patient should seek medical treatment in time. The occurrence of plateau reaction is related to factors such as altitude, residence time, speed of altitude rise and personal constitution. Under normal circumstances, when people living in the plains quickly enter a plateau area at an altitude of more than 3,000 meters, most of them will have a plateau reaction, but the symptoms will gradually disappear after an acclimatization period. The probability of plateau reaction is lower for people who have lived in the plateau area for a long time, and they may not experience plateau reaction even at an altitude of 3,600 meters. It is recommended that people who need to travel to higher altitude areas consult a doctor before going and make the relevant preparations.