The nose is dry and bloody, considering dry atrophic rhinitis, dry syndrome, acute rhinitis and other causes. 1. Dry atrophic rhinitis: a slow-onset diffuse, progressive nasal atrophic lesions, the cause of which is not yet clear, mainly considered to be caused by endocrine disorders, vitamin deficiency and other factors. It can lead to dryness of the nasal cavity and throat, as well as nosebleed. 2. Dry syndrome: it is a chronic inflammatory disease that involves many external secretory glands. When the disease involves the respiratory system, it can lead to dryness of the mouth and nose and other uncomfortable symptoms, due to the dryness of the nasal mucosa, which can cause the rupture of the local capillary, so it can lead to the phenomenon of rhinorrhea. 3. Acute rhinitis: acute rhinitis is a kind of acute inflammation of nasal mucosa caused by virus or secondary bacterial infection, mainly caused by rhinovirus, coronavirus, hemolytic streptococcus, pneumococcus and other infections. It can lead to burning and drying of the nasal mucosa and bleeding. In addition, environmental factors, nasal tumors and other factors can lead to dry and bloody nose, it is best to go to the hospital to improve the relevant examination for identification, and follow the doctor’s instructions for treatment.