A cotton swab dropped into the ear needs to be removed promptly at the hospital. In ENT department, we often see patients abusing cotton swabs to pull out their ears, resulting in the head end of the swab, or even the foreign body of the bamboo swab falling off and remaining in the ear canal. There are two cases: First, most of them can be found in time, and if the location is superficial and close to the ear canal opening and can be seen, they can be gently removed with the small tweezers used by ladies for eyebrow trimming. If it cannot be removed, it must not be forced so as not to push it into the depths, and you need to go to the ENT department of the hospital in time and ask the doctor to help remove it. Second, the specific time when the swab was left behind, the patient himself does not remember, until the secondary infection over time, the emergence of granulation reaction, causing ear pain, tinnitus, deafness and other uncomfortable symptoms, only to come to the hospital for examination and consultation, and finally a clear diagnosis.