There may be the following reasons for not having earwax in the ears: 1. Some patients may be older and have degeneration of the cerumen glands in the ear canal. Once the cerumen glands have degenerated, there is very little metabolite secretion, which manifests as earwax in the ears, i.e. very little cerumen. This phenomenon is more likely to occur in elderly people or patients who have been pulling out their ears for a long time, resulting in damage to the wall of the ear canal or who have had previous surgery for otitis media, and who may have damage to the wall of the ear canal. 2. Some patients have oily cerumen, which appears as a thin, sticky substance, and at this time the earwax can flow out on its own or is sometimes pulled out as soon as the ear is pulled out, and is not easily stored in the ear canal, so the above-mentioned performance may occur. 3. Some patients may have kidney deficiency, which is a Chinese medicine saying that long-term kidney deficiency can easily lead to slower growth of earwax in the ears, which may be related to the difference in personal constitution.