What’s Actually Happening Inside Your Ear?
To understand tinnitus, you need to understand a little about how hearing works.
Sound waves travel through your ear canal and vibrate your eardrum. Those vibrations pass through tiny bones in your middle ear to your cochlea—a fluid-filled, snail-shaped structure in your inner ear.
Inside your cochlea, thousands of tiny hair cells convert those vibrations into electrical signals. Those signals travel along your auditory nerve to your brain, which interprets them as sound.
Here’s where tinnitus comes in.
When those hair cells are damaged—by loud noise, aging, medications, or other causes—they can send random electrical signals to your brain even when no sound is present. Your brain, confused by these signals, interprets them as a ringing, buzzing, or hissing sound.
It’s like a broken guitar string. Even if you’re not playing it, it might still vibrate and make noise.
