The air is generally thinner and drier on the plateau, which is especially likely to cause nasal mucous membrane erosion and bleeding. Therefore, nasal bleeding is a very common phenomenon in plateau reaction, and most people who go to plateau areas will have such a kind of performance. The situation is more serious for those who usually do not like to drink water. The nasal cavity of people who have just entered the plateau area will become very dry and the capillaries of the nasal mucosa will rupture as a result, and nasal bleeding is inevitable. Patients must pay attention to keep the nasal cavity moist, you can use saline sprays. Patients should also pay attention to abstain from eating spicy and irritating food, do not dig or rub the nose, and go to the ENT department of the hospital for rhinoscopy and routine blood tests when possible, so that the cause of nasal bleeding can be diagnosed and then targeted treatment can be carried out.