Nasal bleeding three times a week is usually an abnormal phenomenon. Under normal circumstances, the nasal cavity will not bleed, if the nosebleeds three times a week, the nasal bleeding may be caused by significantly dry weather, or the patient suffers from rhinitis or nasal tumor, etc., which leads to repeated nasal bleeding, and the patient is advised to go to the hospital promptly. I. Environmental factors: 1. Dry environment: For example, in spring, autumn or winter, the air is obviously dry, especially in winter when the bedroom is heated and the humidity is low, there will be repeated nasal bleeding, which is manifested as nosebleeds three times a week. It is mainly caused by the dryness of the mucous membrane of the nasal cavity and the rupture of small blood vessels under the mucous membrane; 2. Large changes in air pressure: such as frequent high-altitude flights, diving, etc., causing sudden changes in air pressure in the sinuses, which may cause the rupture of blood vessels in the nasal cavity, resulting in nosebleeds three times a week. Second, bad lifestyle: If patients have the bad habit of often picking their nostrils with their hands, which damages the capillaries in the nasal cavity and causes capillary rupture, nosebleeds can occur three times a week. Third, drug causes: 1, salicylic acid drugs: patients long-term use of salicylic acid drugs, such as sodium salicylate, aspirin, etc., resulting in increased cardiac blood excretion, vascular pressure increased, can cause three times a week nosebleeds; 2, anticoagulant drugs: patients long-term application of anticoagulant drugs, such as heparin, warfarin, etc., inhibit the body’s normal coagulation function, can cause three times a week nosebleeds; 3 , thrombolytic drugs: patients daily application of thrombolytic drugs, such as streptokinase, urokinase, etc., activate the fibrinolytic system, which can promote the dissolution of blood clots in the blood vessels, but can also affect the normal coagulation function to a certain extent, leading to nosebleeds three times a week. Fourth, disease factors: 1, rhinitis: nasal inflammation can lead to repeated nasal bleeding, such as allergic rhinitis, in addition to a large amount of clear water-like nasal discharge, nasal itching, nasal congestion, sneezing, and nasal mucosa dryness is evident, resulting in nasal discharge with blood or nose bleeding. Dry rhinitis or atrophic rhinitis can lead to dryness of the nasal mucosa and rupture of blood vessels under the mucosa, resulting in nosebleeds three times a week; 2. Structural changes in the nasal cavity: such as deviated nasal septum, the mucosa on the deviated side is thin, and when air is rubbed, it can lead to nasal mucosa erosion, causing nosebleeds three times a week; 3. Nasal tumors: such as hemangioma of the nasopharynx, nasopharyngeal cancer, etc., due to nasopharyngeal tumors The surface of the tissue breaks down, which may lead to nasal bleeding three times a week; 4, systemic diseases: such as hypertension, which can cause recurrent nose bleeding, and the common reason for elderly patients is poor control of hypertension, and the rupture of nasal vessels caused by high arterial pressure, which causes nosebleeds three times a week; 5, blood diseases: such as aplastic anemia, thrombocytopenic purpura, leukemia and other diseases that cause platelet abnormalities, or diseases that can diseases such as hemophilia and abnormal proteinemia that cause abnormal blood clotting mechanisms can cause repeated nosebleeds, resulting in nosebleeds three times a week. Patients with nosebleeds three times a week should visit a hospital to find the cause through nasal endoscopy, sinus CT examinations, and blood tests, and carry out targeted treatment by combining the causes. Patients need to pay attention to keep the nasal cavity moist, avoid bad habits, eat a light and easily digestible diet, drink more water, keep the respiratory mucosa moist, avoid spicy and stimulating food, and eat more fruits to supplement vitamins.