Can mild hearing loss heal itself?

2020-05-26 It depends on the cause of hearing loss and whether there is hearing loss. Although it is only "mild", not all cases can self-healing. In pure tone audiometry, the four frequencies of 500, 1000, 2000 and 3000 Hz are called language frequencies. To evaluate the degree of hearing loss, it refer to the average of these four frequency thresholds (the minimum intensity of a pure tone just heard). When the average is less than 25dB, hearing is in the normal range.

The auditory system is the same as other organs. When cells and organs are over stimulated and experience over activity, the energy or ability to respond to the stimulation will be lost, resulting in hearing loss. Hearing loss can be temporary or permanent, which is related to whether the hair cells are damaged. If hearing hair cells are damaged, irreversible hearing loss will occur. Therefore, whether the hearing loss can heal itself or even be cured has nothing to do with the degree. After all, auditory hair cell damage can also be small-scale, so even "mild" may be permanent; and some factors, such as knock, poisoning, disease and other causes of deafness, although the hearing loss is serious for a time, it can be recovered.

For frequency threshold of hearing mentioned above, generally speaking, high frequency hearing loss is not easy to recover, while low frequency hearing loss is better to recover. In fact, 25% - 40% of the patients with mild hearing loss have difficulty in understanding speech information. Therefore, although it is "mild", it is not light.

However, no matter what kind of reasons and the degree of hearing loss, it is necessary to intervene. Early treatment is of great significance in saving hearing.

The so-called power of hearing aid refers to the ability of hearing aid to enlarge sound. Hearing aids with different power are suitable for people with different degrees of hearing loss, which is the key to select hearing aids. It is generally believed that 0-25db is normal; 26-40dB is mild hearing loss, without hearing aids; 41-55db is moderate hearing loss, with small and medium power hearing aids; 56-70db is moderate and severe hearing loss, and 71-80db is severe hearing loss, with medium and high power hearing aids optional; Over 81dbs are extremely severe hearing loss, and can wear extremely powerful hearing aids.