Self-detection of hearing loss can be done by differentiating the volume of the TV before and after adjustment, listening to the sound of the watch hands in each ear, etc. 1. Utilizing the TV. The person being examined can stand at a distance of about 3 to 5 meters from the TV, adjust the remote control to increase or decrease the volume, and then carefully use his/her ears to feel whether he/she can distinguish the change in the volume and whether the result is accurate or not. 2. Use a watch. The watch is placed in each ear, and the examinee carefully compares the strength of the sound of the hands. If the volume perceived in one ear is significantly lower than the other, this may indicate a hearing impairment in one ear. The conditions for self-testing of hearing level are limited, and it is recommended that people with relevant needs visit the ENT department of a regular hospital in time. Under the guidance of the doctor, professional tests such as tuning fork examination and pure tone audiometry examination can be perfected to effectively detect the hearing ability. If self-assessment reveals hearing loss, it is recommended to seek medical treatment in time and follow the doctor’s instructions to avoid delaying the condition.