Nosebleed dragged out a long thick blood clot belongs to the coagulation mechanism occurs the normal role of the performance, to be traumatic coagulation solid after the removal of blood clots can be. Nosebleeds are mostly caused by rhinitis, nasal tumors and other causes of rupture of the small arteries in the Ricci area in the lower part of the nasal septum, which can be treated by drugs, surgery and other treatments. 1. Allergic rhinitis: inflammation of the nasal mucosa can lead to mucosal damage, if the damage to the Ri’s area can lead to massive bleeding, and the appearance of long sticky blood clots. In the acute exacerbation period, oral anti-allergic drugs, like loratadine, cetirizine, etc., combined with hormonal nasal sprays such as budesonide, to control the local edema reaction. At the same time, saline nasal wash can be used to keep the nasal cavity moist and clean. 2. Chronic rhinitis: hormonal nasal spray can be used locally to control the inflammation of nasal mucosa, such as budesonide, fluticasone propionate nasal spray. Rinsing the nasal cavity with saline can play a cleansing role and improve nasal symptoms. After the inflammation is controlled, the symptoms of rhinorrhea can be improved. 3. Nasal tumors: such as nasal capillary hemangioma, etc., should go to the hospital in time for surgical excision treatment, to avoid the tumor break out again, the condition is repeated. It is recommended that patients go to the hospital in time to check the cause and condition, and actively cooperate with the physician treatment, the above drugs need to be used under the guidance of the doctor.