Nasal polyps are growths located in our nasal area, which is divided into the external nose, nasal cavity, and sinuses. Nasal polyps primarily develop within our nasal cavity. For some polyps that originate from the sinuses, such as those from the ethmoid sinus or the maxillary sinus, they may initially grow within a sinus cavity. As they increase in size, they can protrude into our nasal cavity and even extend outside it, becoming directly visible. Therefore, nasal polyps mainly grow in our nasal cavity or sinus cavities. They do not develop on our external nose or in our nasopharyngeal region. The most common locations for them are in the nasal cavity and sinus cavities.