Nearly 15% of American adults have experienced some trouble hearing in the past year. Hearing loss can stem from a variety of causes, including genetics, exposure to loud noises and certain health conditions. There is some evidence to suggest health conditions like anemia may have an impact on hearing.
What Is Anemia?
Anemia is a condition in which the body lacks enough healthy red blood cells to carry adequate oxygen to tissues. The most common type, iron-deficiency anemia, occurs when the body doesn’t have enough iron to produce hemoglobin, a protein in red blood cells that helps transport oxygen.
Symptoms of anemia can include:
- Fatigue
- Dizziness or lightheadedness
- Pale skin
- Shortness of breath
- Cold hands and feet
- Rapid or irregular heartbeat
Because oxygen is essential for the function of every cell, anemia can impact many systems in the body, including the auditory system.
How Could Anemia Affect Hearing?
Although the exact mechanism is still being studied, researchers believe that anemia may impact hearing in a few key ways:
- Reduced oxygen supply to the inner ear: The cochlea, a part of the inner ear responsible for hearing, is highly sensitive to changes in blood flow and oxygen levels. Inadequate oxygen due to anemia could affect its function.
- Increased risk of nerve damage: Prolonged anemia may impair nerve health, including the auditory nerve that transmits sound signals to the brain.
- Inflammatory response: Some types of anemia may cause systemic inflammation, which can indirectly affect hearing sensitivity.
Studies have shown a possible association between iron-deficiency anemia and both sensorineural and sudden hearing loss, particularly in adults. Though the findings are not yet conclusive, they support the idea that hearing may be another area affected by overall blood and oxygen health.
Certain groups are more likely to experience both anemia and hearing issues, including older adults, people with chronic conditions, pregnant women and people with poor dietary iron intake.
What to Do if You Suspect a Connection
If you’re experiencing symptoms of anemia, hearing loss or both, there are steps you can take:
- Get a blood test: A simple blood panel can determine whether you have anemia and what type.
- Schedule a hearing exam: A hearing care professional can evaluate your auditory function and help identify any issues early.
- Improve nutrition: Boosting your intake of iron-rich foods like leafy greens, lean meats, beans and fortified cereals can support red blood cell health.
- Consider supplements: If dietary changes aren’t enough, your doctor may recommend iron or other vitamin supplements.
- Monitor changes: Keep track of any fluctuations in hearing, especially during times of illness or fatigue, and report them to your provider.
By paying attention to your body’s signals and seeking care when something feels off, you can take a proactive approach to preserving your hearing for years to come.
To schedule a hearing test for you or a loved one, contact Valley Audiology today.