Long-term wearing ear plugs have the following hazards: First, long-term wearing ear plugs lead to ear canal cerumen can not be normal secretion discharge, easy to induce cerumen embolism, easy to lead to infection in the ear canal and other performance. Long-term wearing of ear plugs is prone to friction with the wall of the ear canal, leading to erosion and infection of the wall of the ear canal. Wearing earplugs for a long time can cause the air in the ear canal not to flow, and over time it is easy to form fungal otitis externa and other related diseases. Second, long-term wearing ear plugs, patients long-term exposure to the stimulation of high-decibel noise, a long time easily induced noise-induced neurological deafness, once this disease, clinically difficult to treat, the patient’s daily work and life caused a lot of trouble, so it is not recommended to wear ear plugs for a long time.