The patient’s nose bleeds silk, may be caused by dry nasal mucosa, sinusitis, deviated septum and other reasons. 1. Dry nasal mucosa: dry nasal mucosa may cause the walls of small blood vessels under the nasal mucosa to be fragile, which may result in erosion, ulceration, and recurrent, small amount of blood oozing from the nasal mucosa. 2. Sinusitis: Sinusitis is an inflammatory disease of the mucous membrane of the sinuses, mostly caused by bacterial, fungal and other pathogens, patients may have nasal congestion, pus, head and face pain, decreased sense of smell, a small amount of bleeding in the nasal cavity and other symptoms. 3. Nasal septum deviation: Nasal septum deviation refers to the nasal septum to one side or both sides of the deviation or local protrusion, causing nasal dysfunction, etc., and its main manifestations are nasal congestion, nosebleed, headache, etc., and the serious cases may also cause sinusitis, tinnitus, upper respiratory tract infections and other diseases. In addition, trauma, nasal polyps, blood diseases, etc. may also cause such a situation, it is recommended that the patient consult a doctor in a timely manner for examination, to clarify the cause of the disease for targeted treatment.