Nose with blood in the morning may be caused by dry climate, dry rhinitis, atrophic rhinitis, and other diseases of the nose. 1. Dry climate: when the climate in the north is dry or the heating is on in winter, and you drink less water or there is no humidification, you will have morning nasal discharge with blood. 2. Dry rhinitis, atrophic rhinitis: when the patient’s nasal mucosa appears atrophic and dry, thinning, atrophy of the glands under the mucosa will lead to the phenomenon of blood in the morning nasal discharge, but also blow out the dry crust, nasal pain and other symptoms. 3. Other nasal diseases: if the nasal septum is deviated, the mucous membrane of the septum on the deviated side may be impacted by the respiratory airflow, which may lead to bleeding of the mucous membrane of the septum and the small blood vessels; meanwhile, there are mucous membrane hemangioma in the nasal cavity, hemorrhagic necrotic nasal polyp, as well as cancers of the nasopharynx and the maxillary sinus may also lead to blood in the nasal mucus in the morning. It is recommended to go to regular hospitals in time, under the diagnosis of doctors, according to the specific performance of the disease, take targeted treatment.