What Causes Vertigo and How Is It Treated?

You roll over in bed and the room starts spinning. Or you tilt your head back in the shower and suddenly grab for the wall. These episodes can be terrifying, especially the first time they happen. The good news is that the most common form of vertigo, called BPPV, is also one of the most treatable conditions in all of physical therapy.

Understanding BPPV: What Is Actually Happening Inside Your Ear

BPPV stands for Benign Paroxysmal Positional Vertigo. Let me break that down, because the name actually tells you a lot about the condition. "Benign" means it is not dangerous. "Paroxysmal" means it comes in sudden, brief episodes. "Positional" means it is triggered by specific head positions. And "vertigo" means the sensation that you or the room is spinning.

Inside each of your inner ears, you have three semicircular canals filled with fluid. These canals detect rotational head movement and send that information to your brain so you can maintain balance. Near these canals sit tiny calcium carbonate crystals called otoconia (sometimes referred to as "ear rocks" or "ear crystals"). Normally, these crystals stay attached to a membrane in a part of the ear called the utricle. In BPPV, some of these crystals become dislodged and drift into one of the semicircular canals.

Once the crystals are in the canal, they shift around every time you move your head, creating abnormal fluid movement. Your brain receives conflicting signals: your eyes say you are still, but your inner ear says you are spinning. That mismatch is what causes the intense spinning sensation.

Research published in the journal Otolaryngology, Head and Neck Surgery estimates that BPPV accounts for roughly 17 to 42 percent of all vertigo cases seen in clinical settings, making it by far the most common peripheral vestibular disorder.

Who Gets BPPV and Why

BPPV can happen to anyone at any age, though it becomes significantly more common after age 50. Women are affected about twice as often as men, and researchers believe hormonal changes may play a role in weakening the membrane that holds the otoconia in place.

Some common triggers and risk factors include:

• Head trauma or concussion (even a minor bump can dislodge crystals)
• Prolonged bed rest after surgery or illness
• Vitamin D deficiency, which has been linked to weaker otoconia attachment
• Inner ear infections or prior vestibular disorders
• Osteoporosis and osteopenia (the same calcium metabolism issues that affect bones may affect otoconia)

In many cases, there is no clear cause at all. The crystals simply break free on their own. This is especially common in patients over 60, and I see it regularly in my practice here in Warminster.

How BPPV Is Diagnosed

Diagnosing BPPV requires a specific clinical test called the Dix-Hallpike maneuver. During this test, I guide the patient from a seated position to lying down with their head turned 45 degrees to one side and extended slightly over the edge of the table. If BPPV is present, this position will trigger a characteristic eye movement called nystagmus, where the eyes beat in a rotational pattern. I watch the direction, timing, and duration of the nystagmus closely because these details tell me exactly which canal is affected and which type of BPPV we are dealing with.

The posterior canal is involved in about 80 to 90 percent of BPPV cases. The horizontal canal accounts for most of the remaining cases, and the anterior canal is rarely affected. Knowing which canal is involved determines which treatment maneuver I use.

The Epley Maneuver: How Treatment Works

The primary treatment for posterior canal BPPV is the Epley maneuver, also called the canalith repositioning procedure. It involves a series of specific head and body position changes that use gravity to guide the displaced crystals out of the semicircular canal and back toward the utricle, where they can be reabsorbed.

A systematic review published in the Cochrane Database of Systematic Reviews found that the Epley maneuver resolves posterior canal BPPV in approximately 80 percent of patients after a single treatment session, and success rates climb to over 90 percent with a second session if needed. These are remarkable numbers for any medical intervention.

The entire procedure takes about 15 minutes. There is no medication, no imaging, and no surgery involved. I have treated hundreds of BPPV cases over my 25 years of practice, and it remains one of the most satisfying things I do because the relief is often immediate. Patients who walked into the clinic unable to turn their head without the room spinning will frequently walk out feeling steady and calm.

What About the Other Types of Vertigo?

BPPV is the most common cause, but vertigo can also result from vestibular neuritis (inflammation of the vestibular nerve, usually after a viral infection), Meniere's disease (a condition involving fluid buildup in the inner ear that causes episodes of vertigo along with hearing loss and tinnitus), vestibular migraine, or central causes related to the brain and brainstem.

Each of these conditions requires a different treatment approach. A thorough vestibular evaluation can identify which type of vertigo you have and guide treatment appropriately. This is why a "wait and see" approach to vertigo often does more harm than good. The sooner the cause is identified, the sooner targeted treatment can begin.

When to Seek Help

If you are experiencing vertigo that comes on with position changes, especially rolling over in bed, looking up, or bending forward, there is a strong chance it is BPPV. You do not need a referral to see a physical therapist in Pennsylvania thanks to direct access laws. A single evaluation can often confirm the diagnosis and begin treatment in the same visit.

If you are in the Warminster, Doylestown, or surrounding Bucks County area and are dealing with vertigo, dizziness, or balance problems, I would be glad to help you figure out what is going on and get you back to feeling steady.