Many ear disease patients who have undergone ear surgery often attach great importance to the surgery, but do not understand the post-surgical follow-up very well, which often makes the disease can not be completely treated, thus leading to treatment failure and the need for re-operation. Most ear diseases are characterized by recurrence, especially cholesteatoma of the middle ear, but the chance of recurrence is very low if the post-surgical review is adhered to with the assurance of good surgical quality. In order to minimize the recurrence of the disease, in addition to successful otomicroscopic surgery, postoperative follow-up is very important. Therefore, it is necessary to see the doctor for regular review. The doctor will guide the medication according to the condition of the operative cavity and clean the diseased tissues in time to promote the earliest possible epithelialization of the operative cavity, so as to reduce the recurrence and achieve a cure. The first follow-up is usually 2 weeks after surgery, when the doctor will conduct a thorough cleaning of the surgical cavity, and according to the situation of the surgical cavity to guide the change of medication or spot medication, until the wound heals. Then, the follow-up visit is usually once a month in the first six months, once every 2-3 months in the second six months, and once every six months thereafter.