Long-term not pulling out earwax is usually not a problem, but when there is excessive earwax affecting normal hearing, feeling uncomfortable, then you need to actively go to the hospital to clean up, and the cause of the treatment. Earwax is medically known as cerumen, which is secreted by ceruminous glands in the skin of the external auditory canal. Under normal circumstances, cerumen can protect the external auditory canal from dust and foreign objects, and does not need to be cleaned up. When cerumen accumulates excessively for various reasons, it can block the external ear canal and cause hearing loss. Adhesion of cerumen to the skin of the external ear canal can cause discomfort such as itching of the external ear canal. If patients clean the cerumen by themselves, it may damage the external ear canal and cause otitis externa. When earwax has not been cleaned for a long time, and itching and other discomfort symptoms of the external auditory canal occur, it is necessary to go to the hospital, and be examined and diagnosed by specialists to carry out standardized disposal, so as to avoid damage to the external auditory canal.