1. Know if there is a medical history of long-term exposure to noise.
2. Tinnitus: mostly bilateral tinnitus, consciously aggravated when quiet.
3. Symptoms of hearing loss: When talking with people, others often need to repeat the content of the conversation, speak with a high pitch (always think that others can’t hear and speak loudly), and ignore calls at close range. These are all hearing Signs of decline.
4. Check: If you have the above signs, you should go to the hospital for a related audiology check in time to determine whether your hearing is impaired and whether you need further treatment. (Yangcheng Evening News)