Overview
Both inner ears lose balance function, so people rely on vision and touch.
Some antibiotics like gentamicin are a known cause.
Symptoms
Common signs:
- Unsteady in the dark
Less common
- Blurry vision when walking
Look up a symptom: Dizziness
When to get medical care
Call 911This isn't an emergency by itself. Call 911 for trouble breathing, chest pain, or fainting.
Get care todayFalls.
See a doctor soonSymptoms that last or keep coming back.
Causes
Nerve damage.
Does it spread or run in families?
- It isn't contagious. You can't catch it from someone else.
Who is more likely to get it
- Gentamicin use
- People who took gentamicin: A common cause
Possible complications
- Falls and fall risk: Balance is worse in the dark
Diagnosis
A clinician asks about your symptoms and may order tests.
The exam
A physical exam.
Tests
Tests, if needed:
- Balance tests:
Treatment
Treatment depends on the cause and how severe it is.
Self-care
- Vestibular rehab
- Night lights
Prevention
To lower your risk or prevent problems:
- Ask about inner ear risks with some antibiotics
Which doctor treats this
- Start with your primary care provider (family doctor or internist).
- They may send you to a neurologist (brain and nerve doctor).
Children, pregnancy, and older adults
- Older adults: Higher fall risk.
Pregnancy and breastfeeding
- If you're pregnant or planning to be, tell your prenatal provider about this condition.
- Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
- Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
- Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.
Outlook
Rehab improves balance.
Getting ready for your visit
Bring a list of your symptoms and medicines.
What to bring
- A list of your medicines and supplements
- Notes on when symptoms started and what makes them better or worse
Questions to ask
- What's causing this?
- What treatment do you recommend?
Research studies
Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.
Sources
Last updated 2026-11-12.