Which speculum is used for visualization of the nasal septum?

The Cottle speculum is specifically designed to facilitate the examination of the nasal septum. Its unique shape and construction allow for better visualization and access to the nasal cavity, making it particularly useful in assessing septal deformities or other conditions related to the nasal structure. The Cottle speculum can be expanded to provide a wider view, critical for obtaining a thorough inspection of the nasal anatomy.

In contrast, other speculums, such as the Wilde, Hurd, and Schneider speculums, may serve different purposes or function better in other areas of examination. For instance, while the Wilde speculum is often used in gynecological exams, the Hurd may be utilized for different types of nasal procedures, and the Schneider speculum is primarily used for anterior rhinoscopy. Therefore, for the specific task of visualizing the nasal septum, the Cottle speculum is the most appropriate and effective choice.