If the nose keeps crusting and bleeding, it is mainly seen in the following cases: 1. The dryness of the mucous membrane of the nasal cavity leads to local crusting of the mucous membrane, and the crusted mucous membrane will have blood in the crust, for which you can use compound peppermint brain nasal drops and saline to do nasal rinse treatment, and the condition will be gradually relieved after a week. 2. Something grows in the nasal cavity, such as nasal inversion papilloma or maxillary Sinus cancer, septal sinus cancer, cancerous tissue will lead to repeated local crusting, repeated erosion and bleeding, for this case, it is recommended to go to rhinology department to do nasal endoscopy, and also to review sinus CT or sinus MRI. If something grows, local biopsy can be taken first to get pathology and wait for the pathological nature to be clear before deciding the surgical plan.