Frequent nosebleeds may be caused by bad habits, rhinitis-sinusitis, nasal tumors, systemic diseases and other factors. 1. Bad habits: the weather is dry, and there is a bad habit of picking the nostrils, may often make the nasal mucous membrane rupture bleeding, will often nosebleed, should improve the surrounding environment, quit the bad habits, can be improved by themselves. 2. Rhinitis – sinusitis: for example, acute rhinitis, sinusitis, atrophic rhinitis, etc. may lead to frequent nosebleeds, accompanied by nasal congestion, headache, dizziness, olfactory impairment and other symptoms. 3. Nasal tumors, such as hemangioma, papilloma, squamous carcinoma, adenocarcinoma, etc., when the tumor ruptures and bleeds locally or when there are repeated infections, nosebleeds will occur frequently. 4. Systemic diseases: for example, hemophilia, aplastic anemia and other blood diseases will make the patient bleed frequently, which may be accompanied by oral bleeding, blood in urine and other abnormal manifestations. Frequent nosebleeds are difficult to relieve, patients should consult a doctor for examination, after clarifying the causative factors, timely treatment to avoid aggravation of the lesions.