There is a meatball inside the nasal cavity almost blocking the nostrils, need to consider with chronic rhinitis, nasal polyps, nasal tumors and other diseases. 1. Chronic rhinitis: it is a symptom caused by the lesion of nasal mucosa after stimulation of nasal mucosa. Simple rhinitis can be seen in the examination of nasal mucosa congestion and swelling, the surface is smooth, moist, dark red. Turbinate mucosa is soft and elastic; hypertrophic rhinitis is characterized by hyperplasia and thickening of the turbinate mucosa, with the inferior turbinate predominating, especially at the anterior and posterior ends of the inferior turbinate, the turbinate may be mulberry-shaped, and the nasal mucosa is poorly elastic. 2. Nasal polyps: they are hyperplasia of the nasal cavity or sinus mucosa. Nasal neoplasm can be seen in the examination, with nasal congestion or increased nasal secretion as a common manifestation, and in severe cases, there may be a sense of swelling, loss of smell or loss of sense of smell. It is a common disease of the nose, occurring in adults and rarely in children. It can be single or multiple. 3. Nasal tumor: there can also be nasal swelling, such as ectropion papilloma, but more often with blood in the snot and headache as the first symptom. Nasal cavity meatballs, need to go to the hospital otorhinolaryngology in time, improve the examination, clear cause, standardized treatment under the guidance of physicians.