Whether the surgery for cholesteatoma in otitis media is open or minimally invasive is based on the location and size of the cholesteatoma as well as the severity of the disease. 1. Open surgery: If the cholesteatoma is found to be large in size, large in number, deeper in location and more extensive in scope, the doctor will usually recommend open surgery. Because the minimally invasive surgery in the above cases may affect the surgical effect due to the limitation of surgical field; 2. Minimally invasive surgery: for patients with otitis media cholesteatoma with small volume, shallow growth location and limited lesions, the cholesteatoma is often removed by making an incision in the ear under the observation of otoscope, and this treatment method is minimally invasive surgery. Patients need to actively go to the ENT department of regular hospitals, and it is recommended to ask the doctor to formulate a reasonable surgical plan according to the relevant examination results.