Nasal polyps look like tumors, but they are not tumor tissues. However, if nosebleeds often occur, the patient is old, and a few may become cancerous, so be alert. Nasal polyp is one of the common clinical diseases in otorhinolaryngology, which often occurs in ethmoid sinus area and maxillary sinus outlet at the free edge of middle turbinate. The onset age is mostly middle-aged, male is slightly higher than female, and children rarely occur. The exact cause of nasal polyps is not clear at present, and chronic infection and allergic reaction are considered as the main causes. Clinical symptoms of nasal polyps The appearance of nasal polyps is very similar to that of tumors, but it is not tumor tissue, but a polyp eventually formed due to long-term stimulation or allergic reaction of chronic inflammation, which makes the nasal mucosa highly edema, hinders venous and lymphatic reflux, enlarges interstitial space and causes irreversible edema. The increase of polyp volume will hinder the ventilation and drainage of sinus, lead to poor drainage of sinus secretions, aggravate sinusitis, and form a vicious circle. With the increase of polyp volume or quantity, nasal congestion becomes more and more serious. Nasal sound, head swelling discomfort, mostly nasal abscess, if it is related to allergies, you can shed clear tears. & gt& gt& gt If you have the above symptoms of nasal polyps, please seek medical attention in time. Click to consult our experts for free & gt& gt The description in this article is just a rough idea. I suggest you take a few minutes to consult an online expert and make an appointment for registration. We will provide you with targeted analysis and answers, implement the online consultation and registration service of the Ministry of Health, and enjoy the clear treatment plan provided by authoritative experts in otolaryngology. The Otolaryngology Clinic of Guangxi Armed Police Corps Hospital wishes you a speedy recovery! Keywords: harmful canceration of nasal polyps