Nasal polyps are benign space-occupying lesions in our nasal cavity and sinus cavity. They primarily appear as a pineapple peel-like or half a lychee-like neoplasm. They lack blood vessels and nerves, so nasal polyps generally do not undergo biopsy unless there is suspicion of malignant transformation, in which case a biopsy is performed. Typically, nasal polyps are treated surgically by removing them during surgery, then the excised tissue is sent for pathological examination to determine if the polyps are benign or malignant. Therefore, generally speaking, nasal polyps do not undergo biopsy.