Staying up late can lead to nosebleeds, clinically there are mainly the following reasons: First, patients stay up late will lead to fire, after the fire is easy to induce dryness of the nasal mucosa, it is easy to appear localized erosion and rupture of the mucosa, thus inducing bleeding of the blood vessels under the mucosa. Second, staying up late leads to irregular rest, which can easily induce fluctuations in blood pressure throughout the body, and if the patient’s blood pressure rises, resulting in local expansion of blood vessels, nosebleeds are also likely to occur. Therefore, the phenomenon of nosebleeds often occurs after staying up late, especially in patients with previous rhinitis or hypertension, which are more likely to have nosebleeds. Clinically, for patients with nosebleeds, they should go to the ENT clinic for examination as soon as possible, and they can do local occlusion to stop the bleeding, or they can do electrocoagulation to stop the bleeding, otherwise repeated bleeding will easily lead to hemorrhagic anemia and shock and other related diseases.