The cost of an endoscopy, clinically known as an otoscope, varies depending on the level of the hospital, with the cost of an endoscopy at a tertiary care hospital being around$150. The endoscope is widely used for otologic examinations and is usually connected to a monitor to detect abnormalities in the external ear canal and tympanic membrane, and can usually be performed without anesthesia and without pain during the examination. The endoscope is thin and short and can be placed at the mouth of the external ear canal to see the external ear canal and the tympanic membrane. It can observe the presence of foreign bodies, cerumen, congestion and swelling in the external ear canal, as well as the tympanic membrane, congestion, swelling, perforation, size and shape of the perforation, and sometimes even the condition of the tympanic chamber, sarcoid and cholesteatoma.