A red meatball inside the nasal cavity may be nasal polyps, inferior turbinate hypertrophy, tumors and other diseases. When patients observe a foreign body inside the nasal cavity and it does not subside for a long time, they need to go to the hospital for further examination, and after the cause is clarified, the treatment will be carried out by professional doctors. 1. Nasal polyps: When patients suffer from nasal polyps, small pink lychee-shaped meatballs can be seen by the anterior nostrils, and nasal polyps are mostly seen in both nasal passages. Patients with nasal polyps will have symptoms such as nasal congestion and runny nose. 2. Hypertrophy of the inferior turbinate:The inferior turbinate is located in the lateral wall of the nasal cavity. When suffering from rhinitis, the inferior turbinate is enlarged due to inflammatory stimulation of the nasal lining, which leads to a pink meatball that can be seen by the patient. 3. Nasal tumor:When there is a tumor in the nasal cavity, such as involutional papilloma, a meatball can also be seen.