Treatments Available for Diminished
Senses of Taste and Smell

Thursday, August 13, 2009

ROCHESTER, Minn. — When flowers aren't fragrant and spicy foods don't zing, the senses may be impaired.

But don't assume that diminished senses of taste and smell are due to aging, says the August issue of Mayo Clinic Women's HealthSource. Many smell and taste disorders can be treated, or possibly reversed, depending on the underlying cause.

With a smelling disorder, patients may experience total or partial loss of smell. Or, one may "smell" bad odors that aren't present. The sense of smell gradually declines with age. Often, the change is not noticeable. When smell disorders occur suddenly or are obvious, there's likely a medical reason.

Causes can include upper respiratory infections, such as sinusitis; brain tumors; brain injury; nasal polyps; hormonal disturbances; or dental problems. Prolonged exposure to certain chemicals, such as insecticides, may impair smell. Some medications and medical treatments, such as radiation, also can affect smell. In some cases, a loss of smell can be an early sign of multiple sclerosis, Parkinson's disease or Alzheimer's disease.

Taste disorders are uncommon. When they occur, the reason could be some of the same conditions that cause impaired smelling. This includes upper respiratory infection, head injury, disease and some cancer treatments. Gum disease is another possible cause. Medications, including cholesterol-lowering drugs, antibiotics, blood-pressure medications, antidepressants and anti-anxiety drugs are the most frequent cause of diminished taste or even a bad taste in the mouth.

Diagnostic tests can measure the extent of smell and taste disorders and help identify the causes. Treatment is focused on the underlying cause. Occasionally, it's possible to have a spontaneous recovery, which occurs when damaged smell or taste nerves regenerate.

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Mayo Clinic Women's HealthSource is published monthly to help women enjoy healthier, more productive lives. Revenue from subscriptions is used to support medical research at Mayo Clinic. To subscribe, please call 800-876-8633, extension 9751, (toll-free) or visit www.bookstore.mayoclinic.com.

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About Mayo Clinic

Mayo Clinic is the first and largest integrated, not-for-profit group practice in the world. Doctors from every medical specialty work together to care for patients, joined by common systems and a philosophy of "the needs of the patient come first." More than 3,700 physicians, scientists and researchers and 50,100 allied health staff work at Mayo Clinic, which has sites in Rochester, Minn; Jacksonville, Fla; and Scottsdale/Phoenix, Ariz. and community based providers in more than 70 locations in Southern Minn., Western Wis. and Northeast Iowa. These locations treat more than half a million people each year. To obtain the latest news releases from Mayo Clinic, go to www.mayoclinic.org/news. For information about research and education, visit www.mayo.edu. MayoClinic.com is available as a resource for your health stories.