Have you ever heard a ringing, buzzing, hissing, static, or whooshing sound that no one else seems to notice? While it may feel alarming, you’re not imagining it. These sounds are often caused by tinnitus, a common condition in which the brain perceives sound without an external source.
Tinnitus affects an estimated 10% to 15% of adults worldwide. In the United States alone, more than 50 million people experience tinnitus at some point in their lives, while approximately 20 million adults live with chronic tinnitus. For about 2 million Americans, the condition is severe enough to interfere with sleep, concentration, work, and overall quality of life.
Although tinnitus is commonly described as ringing in the ears, it can sound very different from person to person. Some people hear:
- Ringing
- Buzzing
- Humming
- Hissing
- Clicking
- Roaring
- Static
- A rhythmic whooshing that follows the heartbeat
For many people, the sound is subtle during the day but becomes much more noticeable at night when the surrounding environment is quiet.
What Causes Tinnitus?
Tinnitus is not a disease itself—it’s a symptom of an underlying condition. In fact, up to 90% of people with chronic tinnitus also have some degree of hearing loss, making damage to the inner ear one of the most common causes.
Inside the cochlea are thousands of delicate sensory hair cells that convert sound into electrical signals for the brain. Exposure to loud noise, aging, certain medications, ear infections, or other medical conditions can damage these cells. Once damaged, they cannot regenerate. As a result, the brain may compensate for the missing sound input by generating phantom sounds that are perceived as tinnitus.
Why Is Tinnitus Worse at Night?
Many people notice that their tinnitus seems louder after dark. The reason isn’t that the condition suddenly worsens—it’s that the environment becomes quieter.
During the day, conversations, traffic, televisions, and other background sounds help mask tinnitus. At bedtime, however, the absence of ambient noise allows the internal sound to become much more noticeable. Stress, fatigue, and anxiety can also heighten your awareness of tinnitus, making it seem louder than it actually is.
Using a fan, white noise machine, or other gentle background sounds may help reduce the contrast between silence and tinnitus, making it easier to relax and fall asleep.
Is a Whooshing Sound Different from Ringing?
Not all tinnitus sounds the same. While most people experience continuous ringing or buzzing, others hear a rhythmic whooshing or pulsing that matches their heartbeat. This may be a form of pulsatile tinnitus, which is less common than traditional tinnitus.
Unlike typical tinnitus, pulsatile tinnitus can sometimes be linked to changes in blood flow, high blood pressure, vascular abnormalities, or other underlying medical conditions. Because it may have a treatable cause, anyone experiencing a pulse-synchronous whooshing sound should seek prompt evaluation by a hearing specialist or physician.
When Should You See an Audiologist?
Occasional ringing after a loud concert may disappear within a day or two. However, you should schedule a hearing evaluation if your tinnitus:
- Lasts longer than a week
- Occurs in only one ear
- Is accompanied by hearing loss or dizziness
- Pulses with your heartbeat
- Interferes with sleep, concentration, or daily activities
A comprehensive hearing evaluation can help determine whether hearing loss or another medical condition is contributing to your symptoms. Modern treatment options—including hearing aids with tinnitus features, sound therapy, counseling, and tinnitus management programs—can significantly reduce the impact tinnitus has on your daily life, even though there is currently no universal cure.