Yes, a concussion can cause tinnitus. Ringing, buzzing, or humming in the ears is one of the more common auditory symptoms following a mild traumatic brain injury. Estimates suggest that 34 to 50% of people who experience a concussion develop some form of auditory problem, including tinnitus, hearing loss, or balance-related symptoms like vertigo. If you’re hearing phantom sounds after hitting your head, you’re far from alone.
How a Concussion Triggers Tinnitus
Tinnitus after a head injury can originate from damage at multiple points along the hearing system, from the inner ear all the way up to the brain’s auditory processing centers. The impact of a concussion can injure the tiny hair cells inside the inner ear or the fibers of the auditory nerve that carry sound signals to the brain. When those signals weaken or drop out, the brain doesn’t simply go quiet. Instead, it turns up the volume on its own internal circuits to compensate for the missing input.
This compensation process is central to how tinnitus develops. With less sound information arriving from the ear, auditory neurons in the brain become hyperactive. They fire more often on their own, synchronize with each other in abnormal patterns, and reorganize the brain’s internal “sound map.” The result is a phantom sound, a ringing or buzzing that exists only in the nervous system. Researchers have confirmed that a key driver of this hyperactivity is a reduction in the brain’s natural braking signals, the inhibitory chemicals that normally keep neural firing in check. When those brakes weaken, the auditory system essentially generates noise on its own.
Concussions can also cause diffuse axonal injury, where the shearing forces of the impact stretch and damage nerve fibers throughout the brain. When this affects the central auditory pathway, the network of structures that processes and interprets sound, it can produce or worsen tinnitus even without obvious damage to the ear itself. This means your hearing test might come back normal while you still experience persistent ringing.
Blast Injuries vs. Impact Injuries
Not all concussions affect the auditory system equally. Research on military personnel has found that blast-induced concussions produce significantly more neurological symptoms than impact-induced concussions, both immediately and months later. In a study of Marines, those with blast-related brain injuries continued to report elevated symptoms roughly six months after deployment, even though overall symptom levels decreased at similar rates regardless of how the injury happened. Even repeated exposure to low-level blasts, without a diagnosed concussion, was associated with persistent neurological symptoms.
These findings suggest that blast injuries may affect the brain differently than a fall, car accident, or sports collision. The pressure wave from an explosion travels through the skull in a way that can damage both the delicate structures of the inner ear and the deeper auditory pathways simultaneously. If your tinnitus followed a blast exposure, it may take longer to resolve and warrants closer follow-up.
Other Auditory Symptoms to Watch For
Tinnitus after a concussion rarely shows up in isolation. People commonly report a cluster of related auditory problems, including difficulty understanding speech in noisy environments, sensitivity to sounds that previously felt normal (hyperacusis), dizziness, and a sense of fullness or pressure in the ears. In one large clinical study, patients with head trauma-related tinnitus were significantly more likely to report that everyday sounds caused pain or physical discomfort compared to people whose tinnitus had other causes. Neck pain and vertigo were also more common in this group.
Because concussion symptoms overlap so heavily, tinnitus can get lumped in with the general fog of headaches, fatigue, and difficulty concentrating. It’s worth paying attention to your hearing specifically, since auditory symptoms are frequently underreported and underassessed in standard concussion evaluations. A review in the Clinical Journal of Sport Medicine found that many published concussion guidelines fail to address auditory symptoms at all, either at the time of injury or during recovery.
The Emotional Weight of Post-Concussion Tinnitus
Tinnitus from a head injury tends to be more distressing than tinnitus from other causes. A study published in PLOS One compared tinnitus patients across different injury types and found that those with head trauma reported higher scores on standardized measures of tinnitus severity, depression, and reduced quality of life. Their average depression scores were notably higher than those of tinnitus patients with no history of trauma. The study’s authors attributed part of this to dysfunctional coping strategies that develop after traumatic events, where the psychological burden of the injury itself amplifies the distress caused by the ringing.
This creates a feedback loop. Anxiety and stress are well known to make tinnitus louder and harder to ignore, and a concussion already disrupts sleep, concentration, and mood regulation. If you notice that your tinnitus feels worse on days when you’re more anxious or exhausted, that connection is real and physiological, not imagined.
Recovery Timeline
One of the frustrating realities of post-concussion tinnitus is that there’s no standard recovery timeline. Most concussion symptoms are expected to resolve within three months, and auditory symptoms that persist beyond that window may indicate a more complex injury profile. But the research on how long tinnitus specifically lasts after a concussion is thin. The same review that criticized concussion guidelines noted a critical gap in understanding the “temporal recovery gradient” of auditory symptoms, meaning clinicians don’t yet have solid data on what percentage of cases become chronic versus self-resolving.
Anecdotally, many people find that their tinnitus fades as other concussion symptoms improve, particularly within the first few weeks. Others experience fluctuating intensity for months, where the ringing quiets down during calm, rested periods and flares during stress or cognitive exertion. A smaller subset develops chronic tinnitus that persists well beyond the expected recovery window.
Managing Tinnitus After a Concussion
Because post-concussion tinnitus stems from changes in the brain rather than a single fixable problem in the ear, treatment focuses on reducing the brain’s overreaction to missing or altered sound input. Sound therapy is one of the most accessible approaches. This involves using background noise, white noise machines, fan sounds, or specially designed apps to give the auditory system real sound to process, which can reduce the prominence of the phantom ringing. Many people find that tinnitus is most noticeable in quiet environments, so even a low-level ambient sound at night can make a significant difference in sleep quality.
Cognitive behavioral therapy adapted for tinnitus helps break the cycle between the sound and your emotional response to it. The goal isn’t to eliminate the ringing but to reduce the distress it causes, which in turn can make the sound less noticeable over time. Given the higher rates of depression and anxiety in head trauma-related tinnitus, addressing the psychological component is especially important.
Hearing aids can help if there’s any measurable hearing loss, even mild loss that you might not have noticed on your own. By restoring the missing sound input, hearing aids reduce the brain’s compensatory hyperactivity. For people without hearing loss, wearable sound generators that sit in the ear and produce a soft masking tone are another option. An audiologist experienced with tinnitus can help determine which combination of tools fits your situation.