Bleeding from sinusitis and blood in nose is not serious if it is only caused by sinusitis; it is more serious if it is combined with benign or malignant tumors of nasal cavity-sinus and nasopharynx. 1. Sinusitis: if only due to inflammation, nose blowing and other causes of nasal mucous membrane damage, rupture of small blood vessels in the nose bleeding caused by nosebleeds or nasal discharge with blood, for the cause and symptomatic treatment can be relieved, this situation is generally not serious. 2. Combination of benign and malignant lesions: Sinusitis is more serious if combined with malignant tumors in nasopharynx, such as nasopharyngeal carcinoma. Benign lesions, if the vascular origin of benign tumors, such as nasal sinus hemangioma, nasopharyngeal fibrous hemangioma, maxillary sinus hemorrhagic necrotic polyp, etc., can also cause a relatively large number of intense bleeding, need to early medical treatment, early surgical treatment. Sinusitis bleeding, nasal discharge with blood, may also be caused by systemic diseases, depending on the specific disease to determine whether it is serious. Should consult the doctor in time, under the guidance of the doctor systematic examination to clarify the cause of the disease, standardized treatment.