Rhinitis with blood clinically is mainly seen in the following cases: First, patients have long-term rhinitis, resulting in nasal mucosa erosion and ulceration, patients often blow their noses, artificial factors aggravate the capillary bleeding in the nasal cavity, thus manifesting as nasal blood, mostly manifesting as nasal discharge with blood. Secondly, the patient may have rhinitis, but at the same time there are some tumors in the nasal cavity, the tumor local rupture and erosion can be manifested as blood mixed with nasal mucus, for example, some patients have rhinitis and malignant tumors in the nasal cavity such as maxillary sinus cancer, septal sinus cancer, olfactory neuroblastoma and other related diseases. Some patients have nasal NK/T-cell lymphoma and other related factors, which can also appear with blood in nasal mucus while accompanied by inflammation in the nasal cavity, so we must be vigilant. Thirdly, patients with rhinitis and blood in nasal mucus at the same time, mainly blood in recycling mucus, should be highly alert to the possibility of nasopharyngeal cancer appearing clinically, especially for middle-aged and elderly patients, it is recommended to check electronic nasopharyngoscopy to avoid the leakage of nasopharyngeal cancer. In short, blood in rhinitis suggests patients to go to ENT department to perfect nasal endoscopy, electronic nasopharyngoscopy or even sinus CT and other related examinations to see what disease is causing this condition.