If a patient has a nosebleed after exercise, there are two major aspects to consider: 1. The patient is likely to have high blood pressure, and the blood pressure fluctuates significantly after strenuous exercise, so the blood vessels inside the patient’s nasal cavity will break, resulting in a nosebleed. 2. The main consideration is that the patient’s breathing rhythm is faster during exercise, which is particularly likely to lead to dryness of the nasal mucosa, sometimes leading to The nasal mucosa is dry and cracked, so nosebleeds can occur. Regardless of which of the above conditions causes the nosebleed, it is necessary to actively stop the bleeding. Patients are advised to exercise appropriately, and at the same time, cotton balls can be stuffed inside the nasal cavity on the bleeding side to stop the bleeding. If the bleeding is particularly heavy, it is best to go to the hospital for detailed examination to avoid delaying the patient’s condition. At the same time, patients must not exercise strenuously and do not blow their nose hard.