Cholesteatoma otitis media, a common inflammatory disease of the middle ear, is performed in large and small hospitals with varying postoperative results. First and foremost, the most important thing is the experience of the doctor. Formally trained and experienced doctors clean up lesions, have fewer surgical complications, and have a higher quality of life after surgery. For example, traditional open surgery leaves a wide mastoid cavity that is prone to scabs and infections; whereas a filled mastoid cavity is close to the natural external auditory canal, which is easy to take care of and has a higher quality of life. Even if the mastoid cavity is open, its effect is different after the treatment of the ear nail cavity. Next is the surgical equipment. Bigger hospitals often have high-quality microscopes and microscopic instruments, which can better guarantee the quality of the surgery. Just like taking a taxi, the car of a large company is in good condition; the driver with more kilometers usually judges the road condition accurately, and it is usually safe to take his car.