Hearing problems are a common problem for many people, and poorer hearing can be due to many different causes. The exact approach will depend on the nature and extent of the hearing loss. The first recommendation is to visit a hospital otology department for a specialist examination to identify the cause of the hearing loss. There are many causes of hearing loss, which can be caused by a sound transmission disorder in the outer middle ear or by a sound perception disorder in the inner ear. External middle ear diseases include cerumen embolism, atresia, otitis media, interruption of the auditory chain, etc. These problems may be solved by simple treatment and surgery; while diseases involving the inner ear or nerves: if it is sudden deafness timely treatment in the hospital may be cured, while most sensorineural deafness such as senile deafness, medication, noise blast is generally difficult to improve hearing by medication, most take Hearing aids are suitable for mild to moderate hearing loss. Hearing aids are suitable for people with mild, moderate and partially severe hearing loss. They can not only improve speech discrimination, shield tinnitus to some extent, but also for elderly people to keep the central active level and prevent Alzheimer’s disease. Invisible hearing aids have also been invented in current clinical practice without affecting the aesthetics and have better results for the organism compared to traditional hearing aids. For patients with poor hearing, it is recommended to pay attention to health care in daily life, avoid noise and shock exposure, and pay attention to rest, don’t stay up late and relax. It is recommended to go for hearing aids as early as possible, not only to not affect the speech function, improve hearing and prevent the degeneration of hearing function.