Nasal polyps are a relatively common clinical disease, with various symptoms. Common symptoms include bleeding, as well as nasal congestion, runny nose, reduced sense of smell, headache, and dizziness. The bleeding caused by nasal polyps may be due to the condition of the polyps themselves, with some patients experiencing bleeding polyps that bleed repeatedly. It could also be due to inflammation associated with the polyps, or erosion of the nasal mucosa or small blood vessels in the nasal cavity rupturing and causing bleeding. Therefore, when such symptoms occur, it is necessary to visit an otolaryngology (ENT) department for tests such as a complete blood count, coagulation function tests, nasopharyngoscopy, and a sinus CT scan to determine the specific cause of the condition.