Ear plugs may have the following hazards: 1. They may easily stimulate the ear canal wall and lead to damage to the skin of the ear canal wall, which may clinically induce diseases such as otitis externa and external ear canal boils. 2. 4. Patients who wear earplugs for a long time, especially long-term high-decibel noise stimulation, are likely to induce neurological deafness and neurological tinnitus, which seriously affects the quality of life of patients and is not easy to treat clinically. In short, it is not recommended for patients to wear ear plugs for a long time. It is recommended that patients wear ear plugs intermittently and control the time well, and wash them frequently to avoid inducing local infection in the ear canal.