An otoscope is a tool used to check ears. The part that goes into your ear is at the top of the otoscope. The thin cone shaped piece goes in your ear, and the doctor can view the inside of your ear by looking at the magnifying glass on the other side of the piece at the top. If you look at the image on the left, you will get a better idea of what I am talking about. The cone shaped piece has a cap over it, and when the doctor is done with it, he throws the cap away and puts on a new one. The tool is very clean, so don't worry about getting someone else's earwax into your own ear! The otoscope can help the doctor know what's going on in your ear if you have any ear problems such as pain or hearing problems or if you just want to take that hunk of earwax out of your ear!