Balance problems stem from disruptions in one or more of the three sensory systems your body relies on to keep you upright: your vision, your inner ear, and the sensory nerves throughout your muscles and joints. These three systems constantly feed information to your brain, which integrates it all to maintain stable orientation. When any part of this chain breaks down, whether from an inner ear disorder, nerve damage, a cardiovascular issue, or even a medication side effect, the result is dizziness, unsteadiness, or vertigo.
Balance problems become increasingly common with age. Nearly 50% of people over 60 show some measurable decline in vestibular function, and that number climbs to 85% in those over 80. But age is only one factor. Many causes are treatable once identified.
How Your Balance System Works
Your brain doesn’t rely on a single sense to keep you balanced. It cross-references three streams of information simultaneously. Your visual system maps the environment around you. Your inner ear detects both linear motion (forward, backward, up, down) and rotational motion. And sensory nerves throughout your body track muscle tension, joint position, and pressure on the soles of your feet. Vision typically exerts the strongest influence on balance, followed by the inner ear and then sensory nerves.
Because the brain depends on agreement between these systems, problems arise when one sends conflicting signals or stops sending signals altogether. A damaged inner ear, for instance, might tell the brain you’re spinning while your eyes and feet say you’re perfectly still. That mismatch is what creates the sensation of vertigo or unsteadiness.
Inner Ear Disorders
BPPV (Benign Paroxysmal Positional Vertigo)
BPPV is the most common inner ear cause of vertigo. Inside your inner ear, tiny calcium carbonate crystals help detect gravity and linear movement. Sometimes these crystals break loose and drift into the semicircular canals, the fluid-filled tubes that sense rotation. Once there, the loose debris shifts with gravity every time you move your head, sending false rotation signals to your brain. The result is brief but intense spinning triggered by specific movements like rolling over in bed, tilting your head back, or bending forward.
Age-related changes play a role. Over time, the gel-like membrane holding these crystals in place can fragment, allowing chunks of crystal-studded membrane to break free as a unit. This is why BPPV becomes more common in older adults, though it can happen at any age after a head injury or inner ear infection. The good news: BPPV is highly treatable with specific head-repositioning maneuvers that guide the crystals back where they belong.
Vestibular Neuritis and Labyrinthitis
These two conditions are closely related but differ in one important way. Vestibular neuritis is inflammation of the nerve connecting the inner ear to the brain, causing prolonged vertigo without hearing loss. Labyrinthitis involves inflammation of the inner ear itself, causing both vertigo and hearing loss. Both are typically triggered by a viral infection and can produce days of severe spinning that gradually improves over weeks.
Ménière’s Disease
Ménière’s disease causes episodes of vertigo lasting anywhere from 20 minutes to 12 hours, sometimes up to 24 hours. It comes with a distinctive cluster of symptoms: documented hearing loss (often affecting low frequencies or a combination of low and high frequencies while sparing midrange hearing), ringing in the ear, and a feeling of fullness or pressure in the affected ear. The underlying cause involves abnormal fluid buildup in the inner ear, though what triggers that buildup isn’t fully understood.
Nerve Damage and Sensory Loss
Your sensory nerves form the third pillar of the balance system. When peripheral neuropathy damages these nerves, particularly in the legs and feet, you lose the ability to sense where your body is in space. This can leave you unable to coordinate walking or maintain balance, especially with your eyes closed, because you’ve lost the foot and joint signals your brain normally relies on as backup when visual input is limited.
Diabetes is the leading cause of peripheral neuropathy in the United States. Vitamin deficiencies, particularly B12 deficiency, can also damage these nerves. Excess vitamin B6, alcohol use, and exposure to certain toxins are additional culprits. The balance problems from neuropathy tend to develop gradually, often starting as a sense of unsteadiness that worsens in dim lighting or on uneven surfaces.
Cardiovascular Causes
Not all balance problems originate in the ear or nerves. When your cardiovascular system can’t deliver enough blood to the brain, lightheadedness and unsteadiness follow. The most recognizable example is orthostatic hypotension, a drop in blood pressure when you stand up. It’s defined as a systolic pressure drop of 20 mmHg or more, or a diastolic drop of 10 mmHg or more. This can make you feel dizzy or faint within seconds of standing, particularly after lying down for a while.
Orthostatic hypotension is common in older adults and in people taking blood pressure medications, but dehydration, prolonged bed rest, and conditions affecting the autonomic nervous system can all contribute.
Neurological Conditions
When the brain itself is the source of the problem, the pattern of symptoms tends to differ from inner ear disorders. Central causes of vertigo originate in the brainstem or cerebellum, the region at the back of the brain responsible for coordinating movement. Stroke, multiple sclerosis, and noncancerous tumors pressing on the vestibular nerve can all disrupt balance processing at this level.
Central vertigo often produces symptoms that are less intense but more persistent than inner ear vertigo. Nystagmus (the involuntary eye movements that accompany many balance disorders) behaves differently with central causes. It tends not to fade with repeated testing, doesn’t decrease when you fix your gaze on a single point, and may move vertically rather than in the horizontal or rotational pattern typical of inner ear problems.
Vestibular Migraine
Migraine doesn’t just cause headaches. Vestibular migraine produces moderate to severe episodes of dizziness, vertigo, or spatial disorientation lasting anywhere from 5 minutes to 72 hours. A diagnosis requires at least five such episodes in someone with a current or past history of migraine. The vertigo episodes don’t always coincide with a headache, which makes vestibular migraine easy to miss. Associated symptoms can appear before, during, or after the dizziness itself, and the pattern may vary from one episode to the next.
Medications That Damage the Inner Ear
Certain medications are directly toxic to the inner ear, a side effect called ototoxicity. The damage can affect hearing, balance, or both, and in some cases it’s irreversible. The most commonly implicated drug classes are aminoglycoside antibiotics (used for serious bacterial infections) and platinum-based chemotherapy drugs. Loop diuretics, which help the kidneys remove excess fluid, can also cause ototoxic effects. Even high doses of aspirin have been linked to temporary inner ear damage.
If you’re taking any of these medications and notice new dizziness or hearing changes, that’s information worth raising with your prescriber, since catching ototoxicity early can sometimes prevent permanent damage.
Age-Related Balance Decline
Aging affects every component of the balance system simultaneously. The inner ear loses sensory cells, sensory nerves conduct signals more slowly, vision deteriorates, and muscles weaken. Population-based studies show that 20 to 30% of adults 65 and older report dizziness or imbalance, rising to over 50% in community-dwelling adults over 80. Among nursing home residents, the prevalence reaches 68%.
This gradual, multi-system decline is sometimes called presbyvestibulopathy. It doesn’t stem from a single identifiable disease but from the cumulative degradation of the sensory inputs the brain depends on. The practical impact is significant: balance problems in older adults are a major driver of falls, which remain a leading cause of injury in this age group. Strength training, balance exercises, vision correction, and medication review can all reduce fall risk even when the underlying vestibular decline can’t be fully reversed.
How Balance Problems Are Diagnosed
Because so many different systems can be involved, pinpointing the cause of a balance problem often requires specific testing. One of the most informative tools is videonystagmography, or VNG testing, which tracks involuntary eye movements to gather objective data about the inner ear and the brain’s balance-processing centers. Different components of the test can distinguish between peripheral causes (inner ear or nerve) and central causes (brain).
During a VNG, you may be asked to follow moving targets with your eyes, hold your gaze in specific positions, or have warm and cool air directed into your ear canals to stimulate the inner ear. The way your eyes respond to each task tells the examiner where in the balance chain the problem lies. A hearing test is often performed alongside VNG testing, since many inner ear conditions affect both balance and hearing. Blood pressure measurements in different positions, blood work to check for vitamin deficiencies or blood sugar issues, and brain imaging may round out the evaluation depending on the suspected cause.