There is no such clinical term as nasal cancer, but rather nasopharyngeal cancer. Blood in the nose is not necessarily nasopharyngeal cancer, but may also be caused by dryness of the nasal cavity, mucous membrane damage, and nasal bleeding. Dry nasal cavity, broken nasal mucous membrane and nasal bleeding are common in winter, when the weather is more severe, and some patients who like to dig their noses often may cause this condition, first of all, avoid touching the nasal cavity, do not eat some spicy and stimulating food, drink more water, drink more chrysanthemum and honeysuckle tea, and use nasal drops of compound peppermint oil to keep the nasal cavity moist as appropriate. Nasopharyngeal cancer is mainly found in the nose and pharynx, and the most common clinical symptoms are blood in the snot, tinnitus, stuffy ears, hearing loss, headache, blurred vision, etc. Therefore, after these symptoms appear, you must seek medical attention in time, have an electronic nasopharyngoscopy to look at the nasopharynx, and if necessary, have a magnetic resonance examination of the nasopharynx, and finally confirm the diagnosis by biopsy. The most common pathological type of nasopharyngeal cancer is squamous carcinoma, and its first choice of treatment is intensity-modulated radiotherapy combined with chemotherapy, and generally speaking, the treatment effect of early stage nasopharyngeal cancer is still good, and the 5-year survival rate can reach more than 9580%. Therefore, blood in snot is not necessarily nasopharyngeal carcinoma, but we should go to the local regular hospital in time to clarify the condition through electronic nasopharyngoscopy to avoid delaying the condition so as to better target the treatment.