Why Does Dizziness Happen?
Your sense of balance depends on three systems working together: the inner ear (vestibular system), your eyes, and your sensory input from muscles and joints. Your brain combines these signals to tell you where you are and how you are moving. When one part is disrupted, you may feel dizzy, lightheaded, off-balance, or like the room is spinning.
Because so many systems are involved, the first step is figuring out which system is affected. Below are four common causes.
1. Concussion and Whiplash-Related Dizziness
Dizziness is one of the most common complaints after a head injury. A concussion can disrupt the inner ear, the eye-movement pathways, and the brain’s ability to process balance signals. Whiplash can add a separate problem: neck injuries can disturb the joint position sense that helps you stay upright.
A 2024 study published in Physical Therapy in Sport looked at this connection. Researchers compared young adults with a concussion history to adults without one, measuring dizziness, vestibular and eye-movement function, and neck proprioception (joint position sense). The authors concluded that assessing all three may help guide patient-specific treatment after concussion. The study was cross-sectional and enrolled participants with and without concussion history between August 2021 and September 2023.
Why it matters: Dizziness after a head or neck injury may come from more than one source. A plan that checks only the head, or only the neck, can miss part of the problem.
2. BPPV (Benign Paroxysmal Positional Vertigo)
BPPV is the most common cause of peripheral vertigo. It happens when small calcium crystals (otoconia) shift out of place in the inner ear and disturb the fluid-sensing canals. The result is brief, intense spinning triggered by specific head movements, such as rolling over in bed, looking up, or bending down.
BPPV is often treated effectively in a single visit, but it does not always stay away. A 2024 study in the Journal of Laryngology & Otology reviewed 664 patients from a specialist open-access pathway, and 52 per cent of them had unconfirmed BPPV at the time of analysis. The recurrence picture was sobering. Recurrence was 34 per cent with at least one year of follow-up, 41 per cent with one to two years, and 53 per cent with two years or more.
The authors concluded that specialist follow-up is required for management of recurrent benign paroxysmal positional vertigo.
Why it matters: BPPV is treatable, but it may return. Ongoing follow-up and a clear plan for recurrence are important.
3. Vestibular Neuritis
Vestibular neuritis is an inflammation of the vestibular nerve, usually from a viral infection. It typically causes sudden, severe vertigo that can last days, along with nausea, vomiting, and imbalance. Because the symptoms can be intense, many people are unsure whether they need care right away.
The strongest recent evidence comes from a 2024 meta-analysis in the American Journal of Physical Medicine and Rehabilitation. Researchers pooled 12 randomized controlled trials involving 536 patients with vestibular neuritis. On dizziness scores, vestibular rehabilitation was comparable with steroids at the first, sixth, and 12th months. The authors also concluded that a combination of vestibular rehabilitation and steroids is more effective than steroids alone. efficacy of vestibular rehabilitation in vestibular neuritis a sy +2
Why it matters: Recovery often depends on early, appropriate treatment, and vestibular rehabilitation (structured exercises that retrain the brain to use balance signals) plays a central role.
4. Dysautonomia
Dysautonomia refers to problems with the autonomic nervous system, which controls automatic functions such as heart rate, blood pressure, and blood flow to the brain. People with dysautonomia often feel lightheaded or dizzy when they stand up, and may also notice a racing heart, fatigue, or shortness of breath.
Because dysautonomia affects blood pressure regulation, it can look like a vestibular problem. Orthostatic testing, such as a tilt table test, measures how heart rate and blood pressure respond to changes in position. This helps separate autonomic causes from inner-ear causes.
How NoVa Neuro Brain Centers Approaches Dizziness
NoVa Neuro Brain Centers in Chantilly, Virginia, takes a patient-focused approach to dizziness. Rather than relying on a single test, the team builds a picture of how your balance system is working and tailors the evaluation to your history and symptoms. The center’s approach includes:
- VNG testing (videonystagmography): Records eye movements to evaluate how the inner ear and brainstem control gaze and balance.
- BTrackS balance assessment: A computerized balance test that measures how well you maintain stability under different conditions.
- Tilt table testing: Evaluates how your heart rate and blood pressure respond to changes in position, which helps assess dysautonomia.
- A thorough bedside exam: A hands-on evaluation of eye movements, head movements, coordination, and positional triggers, with findings tailored to each individual.
Combining these tools helps distinguish between conditions that look similar on the surface. For example, a patient who feels dizzy when standing may have an inner-ear problem, an autonomic problem, or both, and the right treatment depends on knowing which.
Frequently Asked Questions
What is the most common cause of dizziness?
Peripheral vestibular disorders, including BPPV, are among the most common causes of vertigo. Many other factors can also cause dizziness, which is why a proper evaluation matters.
Can a concussion cause long-term dizziness?
Yes. Dizziness and balance problems can persist after a concussion, and both vestibular and neck-related factors may contribute. Evaluation helps identify which needs treatment.
Does BPPV come back?
It can. Research shows recurrence rates increase with longer follow-up, so monitoring over time is important.
Is vestibular neuritis treatable?
Yes. Research supports vestibular rehabilitation, and combining it with steroids may lead to better results than steroids alone.
When should I see a doctor for dizziness?
Seek urgent care for dizziness with sudden weakness, numbness, trouble speaking, vision changes, severe headache, chest pain, or fainting. For ongoing dizziness, schedule an evaluation with a provider who can perform vestibular testing.
Schedule a Dizziness Evaluation in Chantilly, VA
If dizziness is affecting your daily life, a thorough evaluation can help identify the cause. To learn more about NoVa Neuro Brain Centers and their approach, contact their Chantilly office.
This article is for educational purposes and does not replace medical advice. Talk with a qualified healthcare provider about your symptoms and treatment options.
Forrest Fisher
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