(4) For patients with severe high-frequency hearing loss but good low-frequency hearing, it is important to choose a digital hearing aid with better high-frequency compensation and better noise reduction effect to effectively improve the patient's speech resolution.
(5) If the hearing-impaired ear still has pathological conditions such as inflammation, the inflammation should be resolved first, and then a hearing aid should be fitted.
(6) When choosing hearing aids for children, we should consider that children’s ear canals are shorter, flatter, and wider than those of adults. Therefore, the gain and maximum sound output of hearing aids should be set smaller than those of adults. In addition, children’s ear canals are still developing, so in order to prevent hearing aids from whistling, the ear molds should be replaced regularly.
