Wellness Insight
The Persistent Sound
Ringing in the ears, also known as tinnitus, is something many people have experienced at some point. It’s that persistent sound in one or both ears that doesn’t seem to go away.
For most, it’s a temporary problem. However, for millions of people, tinnitus can become a long-term issue.
In fact, around 50 million Americans experience some form of tinnitus, and for about 20 million, it’s a chronic condition.
While tinnitus is not always serious, it can sometimes be linked to hearing loss. Understanding the causes and symptoms is key to managing it properly.
Types of Tinnitus
There are two main types to be aware of.
01.
Non-pulsatile
Also known as subjective tinnitus, this is the most common type. It’s a noise generated in the brain’s auditory cortex, the area responsible for processing sounds.
People hear different kinds of sounds, like tones, static, or ringing, that may change in pitch or quality.
This often happens when the brain tries to fill in sound information that’s missing, similar to how someone might feel a missing limb due to “phantom limb” sensations.
02.
Pulsatile
This is an objective, much rarer type that is directly related to blood flow. People with pulsatile tinnitus hear a sound that matches their heartbeat or pulse.
This happens because of problems with blood vessels near the ear, such as abnormal vessels or tumors.
Unlike non-pulsatile tinnitus, which can vary in sound, pulsatile usually has a steady, rhythmic cadence.
How Tinnitus and Hearing Loss Are Linked
Many people who have hearing loss also experience tinnitus. If you lose hearing in certain frequencies, like high-pitched sounds, your tinnitus might also sound high-pitched.
People with more severe hearing loss may experience louder or more persistent tinnitus. If hearing loss is only in one ear, tinnitus may also only occur in that ear.
But this isn’t always the case. Sometimes people have hearing loss in one ear but still hear ringing in both ears. And not everyone with hearing loss gets tinnitus, just like not everyone with tinnitus has hearing loss.
There are other causes for tinnitus too, such as problems with the jaw—commonly referred to as TMJ disorder.
Why Does Hearing Loss Lead to Tinnitus?
Even though hearing loss doesn’t directly cause tinnitus, they are often linked because of the way our brains work.
Dr. Allison King explains that tinnitus is thought to happen because of damage along the auditory pathways – the parts of the ear and brain that process sound.
When you lose some of your hearing, your brain gets less information from your ears. To make up for this lack of sound, your brain might become extra sensitive, almost like turning up the volume on a speaker.
This heightened sensitivity can make your brain produce the ringing or buzzing sounds of tinnitus.
Another reason for the connection is something called neuroplasticity. This is the brain’s ability to change how it works when something, like hearing loss, happens. When the brain reorganizes to adjust to hearing loss, it sometimes starts to misfire, leading to tinnitus.
Hidden Hearing Loss
There’s also something called “hidden hearing loss,” which is harder to detect. Normal hearing loss usually comes from damage to the hair cells in the inner ear or the auditory nerve.
But hidden hearing loss happens when the connection (or synapses) between the two is damaged.
This doesn’t always show up on regular hearing tests because you might still hear well in quiet places. However, it can lead to increased sensitivity and tinnitus because the signals aren’t being sent to the brain properly.
Summary
In short, tinnitus and hearing loss are often connected because when your ears are damaged or your hearing declines, your brain tries to compensate. This compensation can sometimes create the annoying sounds of tinnitus. While hearing loss is a common cause of tinnitus, not everyone with hearing loss experiences it, and vice versa.
Why You Might Have Tinnitus Without Hearing Loss
Let’s look at some of the reasons why you might experience tinnitus even if your hearing is perfectly fine.
Neurological Problems
Sometimes, tinnitus can be related to problems in the brain. If you’ve had a traumatic brain injury, it can lead to tinnitus, even if your hearing is fine.
Other brain-related conditions, like migraines or tumors in the brain, head, or neck, can also cause tinnitus.
The brain is connected to how we process sound, so when it gets affected by certain conditions, it can sometimes “create” sounds in your ears that aren’t really there.
Mental Health
Tinnitus is also common in people with mental health issues like depression, anxiety, or stress. While doctors aren’t completely sure if mental health problems cause tinnitus, there’s a clear link between them.
Having constant ringing in your ears can make you feel anxious, and if you already deal with those conditions, tinnitus might make them worse. On the flip side, people who are really stressed or anxious may be more likely to notice or develop tinnitus.
Vascular Diseases
Tinnitus can also be connected to problems with blood flow. If you hear a sound that follows the rhythm of your heartbeat, this is called pulsatile tinnitus. This might be caused by blockages in your arteries or blood vessels.
People with health conditions like high blood pressure or diabetes have a higher chance of developing tinnitus because these conditions can lead to problems with the blood vessels.
If you have pulsatile tinnitus, it’s important to let your doctor know to rule out serious conditions.
TMJ Disorder
The temporomandibular joint, or TMJ, is the joint that connects your lower jaw to your skull. If you have a TMJ disorder, it can cause tinnitus.
This type isn’t related to hearing loss. Along with tinnitus, people with TMJ problems might also experience ear pain, a feeling of fullness, or popping sounds when they move their jaw.
Other Chronic Conditions & Idiopathic
Some autoimmune diseases and metabolic conditions are linked to tinnitus, even with normal hearing.
Sometimes, despite testing, the cause can’t be found. This is called idiopathic tinnitus. It can be frustrating, but there are still ways to manage the symptoms.
What Should You Do?
If you’re experiencing tinnitus but don’t have hearing loss, it’s important to see a healthcare provider. Your doctor may refer you to specialists like audiologists or neurologists who can look into different causes like blood flow issues or TMJ disorders.
Does Ringing Mean Hearing Loss?
Not always. Tinnitus and hearing loss are connected, but tinnitus can happen for lots of reasons, even if your hearing is normal.
Hearing loss is one of the main reasons people get tinnitus, but it’s not the only reason. For example, imagine you’re at a loud concert for hours. Afterward, your ears might ring because the loud sounds damaged tiny hair cells inside your ear.
However, not everyone with tinnitus has hearing loss. Here are a few examples of when tinnitus happens without hearing loss:
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Stress and Anxiety: You may start to hear a ringing in your ears because stress can trigger tinnitus, even if your ears are perfectly fine.
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Jaw Problems: If you have a jaw issue, like TMJ, you might get tinnitus. Your hearing could be fine, but your jaw causes the ringing.
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Health Conditions: Someone with high blood pressure might hear a sound that matches their heartbeat. Their ears might not be damaged, but the ringing still happens.
Real-World Examples
Hearing loss and tinnitus are often connected because they both involve the ear and the brain. To make up for missing sounds, the brain might turn up the volume.
Example 1: A construction worker around loud tools for years starts to lose hearing for higher-pitched sounds. At the same time, they develop a ringing because of the damage.
Example 2: A musician spends hours in the studio with loud music. After years, their hearing isn’t as sharp, and they start to hear a buzzing or hissing sound.
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