Nosebleeds can be caused by increased pressure in blood vessels, rupture of capillaries in the nasal cavity, lowered immunity or abnormal liver and kidney functions. Overwork may be caused by working late at night or engaging in heavy physical labor, due to the lack of rest, so that the blood pressure increases, which leads to increased intravascular pressure, rupture of capillaries in the nasal cavity, and the appearance of nosebleeds. When the organism is overworked, the immunity will decline, easily inducing bacterial infection triggering rhinitis and symptoms such as dry nasal mucosa and nosebleeds. Overwork can also cause abnormalities in liver and kidney function, which can lead to nosebleeds. It is recommended to consult a doctor in time to clarify the cause of the disease and standardize the treatment.