Earwax is a normal metabolic product produced by the cerumen, sebaceous glands, sweat glands, etc. in the skin of the ear canal, and everyone has it. Earwax has a cycle of growth and does not grow more and more as the patient pulls it out. Dry earwax is usually recommended to be treated regularly, while oily earwax is recommended to be sucked out by a doctor with a suction device regularly. However, in the following cases, the more earwax is removed, the more it may be removed: 1. Some patients have chronic otitis externa, in which case chronic inflammation in the ear canal stimulates the ear canal, resulting in a continuous increase in ear discharge, which is a pathological manifestation. 2. Some patients have eczema of the external ear canal, especially in the case of chronic eczema, which produces a large amount of yellow scab-like discharge in the ear canal, which is thought to be earwax. 3. Some patients have Some patients have cholesteatoma growth in the external auditory canal, which is thought to be earwax at first, but is eventually found to be cholesteatoma scab formed by the continuous growth of cholesteatoma. 4. Some patients have chronic suppurative otitis media and have long-term pus flow in the ear canal, which is thought to be pus scab mistaken for earwax.