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A whistling or squealing sound from a hearing aid is called feedback. It happens when amplified sound escapes from your ear and gets picked up by the hearing aid microphone again.
Occasional feedback can happen, but frequent whistling may mean your hearing aid needs adjustment, cleaning, or a better fit.
If the hearing aid or ear tip isn't sitting securely in your ear, sound can leak out and cause feedback.
A loose or poorly fitted dome may be the problem, especially if the whistling started after changing the ear tip.
Excess earwax can change the way sound moves through your ear and sometimes contribute to feedback. If you notice muffled hearing along with increased whistling, earwax could be worth checking.
Wax, moisture, or debris around the microphone, speaker, or sound outlet can affect how your hearing aid works. Regular cleaning can help keep sound clear and reduce problems.
Turning the volume up significantly can sometimes increase the chance of feedback. If your hearing aid whistles mainly when the volume is raised, it may need professional adjustment.
Start by making sure the hearing aid is positioned correctly and fits comfortably. Check the dome or ear tip for damage and clean your hearing aid according to the manufacturer's instructions.
If the whistling continues, don't simply turn the volume down and live with it. A hearing professional may be able to adjust the settings or determine whether your hearing aid needs a different fitting.
Hearing aid whistling is common, but you don't have to put up with it. A proper fit, regular cleaning, and professional adjustments can often make a big difference. If you're experiencing ongoing feedback or considering a new hearing aid, Club Hearing can help you find an option that fits your needs and lifestyle.