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    Smell and Taste Disorders

    What are smell and taste disorders?

    The most common smell and taste disorders are:

    • Anosmia. Loss of sense of smell.

    • Ageusia. Loss of sense of taste.

    • Hyposmia. Reduced ability to smell.

    • Hypogeusia. Reduced ability to taste sweet, sour, bitter, salty things, or other flavors

    In other disorders, odors, tastes, or flavors may be misread or changed. They may cause you to get a bad odor or taste from something that is normally pleasant to smell or taste. These disorders can affect quality of life. They may also be a sign of an underlying disease.

    Problems with taste and smell may be signs of certain health problems, such as:

    • Obesity

    • Diabetes

    • COVID-19

    • High blood pressure

    • Poor nutrition

    • Nervous system diseases such as:

      • Parkinson disease

      • Alzheimer disease

      • Multiple sclerosis

    What causes smell and taste disorders?

    Some people are born with these disorders but most are caused by:

    • Illness, such as cold or flu, COVID-19, sinus infection, and allergies

    • Head injury

    • Hormone changes

    • Dental or mouth problems

    • Nasal polyps

    • Exposure to certain chemicals

    • Certain medicines

    • Exposure to radiation therapy for head or neck cancer

    • Cocaine snorted through the nose

    • Cigarette smoking

    What are the symptoms of smell and taste disorders?

    Symptoms can vary. Some people may not be able to smell or taste anything. Others may have a reduced ability to smell or taste certain things that are sweet, sour, bitter, or salty. In some cases, normally pleasant tastes or smells may become unpleasant.

    How are smell and taste disorders diagnosed?

    Along with a complete health history and physical exam, other tests may include:

    • Measuring the lowest strength of a chemical that you can recognize

    • Comparing tastes and smells of different chemicals

    • "Scratch and sniff" tests

    • "Sip, spit, and rinse" tests where chemicals are placed on certain parts of the tongue

    How are smell and taste disorders treated?

    Treatment will depend on your symptoms, age, and general health. It will also depend on how severe the condition is.

    Treatment may include:

    • Stopping or changing medicines that help lead to the disorder

    • Correcting the underlying health problem

    • Surgery to remove blockages that may be causing the disorder

    • Counseling

    • Quitting smoking

    What are possible complications of smell and taste disorders?

    Both smell and taste disorders affect quality of life. But smell disorders can be dangerous. They make you less able to notice such things as:

    • Fire

    • Poisonous fumes

    • Leaking gas

    • Spoiled food and drinks

    Taste disorders can affect nutrition and lead to weight loss and malnutrition. They can also harm the immune system and make other health conditions worse.

    Key points about smell and taste disorders

    • Losing the senses of smell and taste are the most common smell and taste disorders.

    • Other disorders include the reduced ability to smell or taste certain substances that are sweet, sour, bitter, or salty.

    • For some people, normally pleasant tastes or smells may become unpleasant.

    • Treatments for smell and taste disorders often include treating the underlying cause.

    • Smell and taste disorders can affect quality of life and should be treated.

    Next steps

    Tips to help you get the most from a visit to your healthcare provider:

    • Know the reason for your visit and what you want to happen.

    • Before your visit, write down questions you want answered.

    • Bring someone with you to help you ask questions and remember what your provider tells you.

    • At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. Also write down any new directions your provider gives you.

    • Know why a new medicine or treatment is prescribed, and how it will help you. Also know what the side effects are.

    • Ask if your condition can be treated in other ways.

    • Know why a test or procedure is recommended and what the results could mean.

    • Know what to expect if you do not take the medicine or have the test or procedure.

    • If you have a follow-up appointment, write down the date, time, and purpose for that visit.

    • Know how you can contact your healthcare provider if you have questions.

    Online Medical Reviewer: Dan Brennan MD
    Online Medical Reviewer: Sumana Jothi MD
    Online Medical Reviewer: Tara Novick BSN MSN
    Date Last Reviewed: 5/1/2023
    © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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