**What is Ageusia?**
Ageusia is a condition where you completely lose your sense of taste. People with ageusia can’t tell the difference between sweet, salty, sour, or bitter flavors. It’s often confused with anosmia, which is the loss of smell, because taste and smell are closely linked.
While true ageusia is rare, other types of taste disorders are more common. For example, hypogeusia is where you partially lose your sense of taste, and dysgeusia is when you have a constant metallic taste in your mouth, sometimes with a burning sensation on your tongue. As you get older, your risk of developing these conditions can increase.
Having any kind of taste disorder can be risky for your health. Older people might change their eating habits or experience depression due to these changes. They might also add too much salt or sugar to their food to try to enhance the flavor. Taste disorders can be especially dangerous for people with allergies, as they may not be able to taste harmful allergens in their food. Additionally, ageusia can sometimes be a symptom of serious diseases like Parkinson’s, Alzheimer’s, or Bell’s palsy.
**Causes of Ageusia**
When you eat or drink, molecules stimulate sensory cells in your mouth and taste buds. These taste buds are grouped in the taste receptors of your tongue. If anything disrupts this process, you might develop a taste disorder like ageusia.
The most common cause of ageusia is nerve damage in the tongue. It can also happen if you have problems with your endocrine system or are deficient in zinc or vitamin B3. Diseases like diabetes, kidney failure, dental issues, certain cancers, and multiple sclerosis can also lead to a loss of taste. Some medications and high levels of stress and anxiety can cause taste disorders. Good oral hygiene is important to help prevent these issues.
**Diagnosing Taste Disorders**
If you think you might have a taste disorder, see an ENT doctor. They will perform specific tests, often examining your saliva and putting certain substances on your tongue to check how well your taste buds are working.
**Treating Ageusia**
Treating ageusia is similar to treating anosmia (loss of smell). Changing your diet and taking certain medications can help gradually improve your sense of taste. In more severe cases, surgery might be necessary.