Hearing disability refers to different degrees of permanentness in both ears due to various reasonsHearing loss, Unable to hear or hear the surrounding environment sounds and speech sounds (for those who do not heal after treatment for more than 1 year), which leads to the limitation of the patient’s daily life and social participation.
3岁以上的听力残疾划分为4级，1岁以上3岁以下只评定1～3级，6月龄～1岁只评定1～2级，6月龄以内的婴儿不做听力残疾评定。
Hearing loss manifestations: moderate damage to the structure and function of the auditory system, no hearing aids to help, mildly limited understanding and communication and other activities, and mild barriers to participation in social life.
