3 Possible Hearing Aid Side Effects You Should Know By Amanda Vining Email Even though there are side effects to wearing hearing aids, the degree to which side effects are experienced is usually very mild. If you find yourself struggling to hear sounds, hearing aids may be an option to help restore your auditory capabilities. But it’s important to be aware of some hearing aid side effects first. Hearing aids are small battery-powered electronic devices that are worn either in or behind your ear and help to make noises and sounds louder and clearer for patients who have experienced hearing loss.