Nasal polyp, also known as "nasal hemorrhoid", is a hyperplastic tissue mass that grows on the mucosa of nasal cavity or paranasal sinuses and protrudes from the surface of nasal mucosa (that is, a benign tumor formed by hyperplastic mucosa protruding into nasal cavity from nasal meatus). The common manifestations are nasal obstruction or increased nasal secretions, accompanied by facial pain or swelling, and decreased or lost sense of smell.

Nasal polyp is a common nasal disease. It occurs mostly in adults and rarely in children. Can be single or multiple, more common in maxillary sinus, ethmoid sinus, middle nasal meatus, middle turbinate and so on. Typical symptoms of nasal polyps: 1. Nasal congestion: < P > It is characterized by persistent nasal congestion and progressive aggravation, or even complete obstruction of nasal ventilation. Severe nasal congestion is characterized by obstructive nasal sound and sleep snoring. 2. Increased secretion: < P > The nasal cavity is sticky or purulent, and sometimes it is clear, which may be accompanied by sneezing. 3. Olfactory disorder: < P > It may be accompanied by decreased or lost sense of smell, mostly conductive olfactory disorder. 4, ear symptoms: < P > When nasal polyps or secretions block the eustachian tube mouth, can it cause tinnitus? And hearing loss. 5. Sinusitis? Symptoms: < P > Nasal polyps hinder and block the drainage of sinuses, often secondary to sinusitis, with swelling and pain in the back, forehead and cheeks. 6. Bronchial asthma: < P > Asthma in patients with nasal polyps? The incidence rate is as high as 2% ~ 3%, which is because "the same airway, the same inflammation", nasal polyps and bronchial asthma are chronic mucosal inflammation in the same airway, and IL-5 and other cytokines produced by nasal polyps can act on bronchial mucosa and cause asthma. 7. Frog nose: < P > Huge bilateral nasal polyps with a long history or recurrent attacks can cause external nasal deformity, that is, the nasal dorsum on both sides becomes wider and looks like a frog's abdomen, which is called "frog nose". 3. Description of symptoms of nasal polyps: < P > Nasal polyps are lumps that are overgrown on the mucosa of nasal cavity or sinus. It usually occurs in the lateral wall of nasal cavity and the top of nose. Secondly, ethmoidal sinus can also be seen in the sinus of the upper stool. Visually, nasal polyps are pink, smooth and moist, and quite soft to the touch, like peeled ripe grapes. The expanded cystic cavity can be seen on its section, and there are powdery frozen or grayish white mucinous secretions in the cavity. 4. Types of nasal polyps: 1. Allergic polyps: < P > They are often bilateral multiple. If the allergic causes cannot be removed, polyps will often recur after resection. In addition to obvious edema, there are a lot of eosinophil infiltration, obvious thickening (glassy change) of the basement membrane on the mucosa and metaplasia of the epithelium. 2. Inflammatory polyp: < P > Unilateral or single polyp formation is mostly caused by local infection, and it is not easy to recur after resection. The edema is slight, and the inflammatory cells exuded are mainly neutrophils and monocytes. Epithelial metaplasia and basement membrane thickening are rare and can be distinguished from allergic polyps. 3. Polyp in the retronasal foramen: < P > This is a clinical name, because the polyp has a long pedicle extending from the nasal cavity into the nasopharynx through the retronasal foramen. In fact, the acute or allergic nasal mucosal edema does not heal for a long time, and the lesions are mainly inflammatory edema and inflammatory infiltration, without interstitial degeneration and hyperplasia, so nasal polyps belong to inflammatory lesions. However, because nasal polyps form masses, they are often called tumor-like lesions, and generally do not become malignant.