The position of the nasal vestibule is in the anterior and inferior part of the external nose, the most anterior part of the bilateral nasal cavity of the human body, that is, the bilateral large wing cartilages on the medial side of the opposite position, the anterior boundary is the anterior nasal aperture, and the posterior boundary is the endonasal aperture, through the valve-less facial veins and intracranial cavernous sinuses connected to each other. On the inner surface of the skin of the nasal vestibule there are coarse and stiff nasal hairs, which serve to filter dust and purify the air. The superior and posterior aspect of the nasal vestibule is the curved and elevated nasal threshold, which divides the intrinsic nasal cavity. The vestibule is located on the inner surface of the nasal tip and the nasal wings, and is the broader part of the lower front part of the nasal cavity. The nasal vestibule is rich in sweat and sebaceous glands. Improper care of this area can lead to boils, nasal vestibulitis, and nasal vestibular cysts, which can cause localized skin redness, heat and pain, and even bleeding. Nasal vestibule cysts have the potential to allow breathing to be obstructed, resulting in swelling of the inside of the nose or upper lip, and radiating pain in cases of concurrent infection. Once an abnormality in the nasal vestibule is detected, it is important to work with your doctor to find the cause and address it proactively.