Nosebleeds with sticky blood streaks are mostly caused by a small amount of oozing blood from the nasal mucosa, which hoards and coagulates in the nasal cavity. It can be seen in the rupture of nasal mucosa caused by chronic rhinitis, deviated septum, nasal trauma, chronic bleeding caused by nasal cavity, sinus and nasopharyngeal tumors, and may also be caused by some systemic diseases and other factors. 1. Nasal mucous membrane rupture: due to chronic rhinitis, nasal septal deviation, nasal trauma, resulting in nasal mucous membrane damage, dryness, erosion, and then mucous membrane rupture and bleeding and accompanied by the phenomenon of scabs, there will be a phenomenon of mucous blood in the nose. 2. Chronic bleeding caused by nasal cavity, sinus and nasopharyngeal tumors: most commonly seen in nasal septal hemangioma, nasopharyngeal fibrous hemangioma, hemorrhagic nasal polyps and malignant tumors of the nasal cavity and sinus, a small amount of bleeding, easy to appear nosebleeds with mucousy blood streaks phenomenon. 3. Other diseases: some systemic diseases, such as blood diseases, some systemic febrile diseases can also cause nosebleed and nosebleed with mucus-like blood. Therefore, once you have a nosebleed with sticky streaks, it is recommended to go to the hospital to find out the cause of the disease and actively cooperate with the doctor for treatment.