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Taste, impaired Considerations:
The tongue can "taste" only sweet, salty, sour, and bitter sensations. Much of what is perceived as "taste" is actually smell.
Taste abnormalities can be caused by anything that interrupts the transfer of taste stimuli to the brain, or conditions that affect the way the brain interprets taste stimuli.
Common Causes:
- common cold
- nasal infection due to infection (such as salivary gland infections ), polyp, etc.
- influenza
- viral pharyngitis
- mouth dryness
- aging (the number of taste buds diminishes with age)
- heavy smoking (especially pipe smoking ) which causes mouth dryness
- vitamin ( vitamin B-12 ) or mineral ( zinc in diet ) deficiency
- injury to the mouth, nose, or head
- gingivitis
- drug side effects such as antithyroid drugs, captopril, griseofulvin, lithium, penicillamine, procarbazine, rifampin, vinblastine, or vincristine
- Bell's palsy
- Sjogren's syndrome
- streptococcal pharyngitis ( strep throat )
Note: There may be other causes of impaired taste. This list is not all inclusive, and the causes are not presented in order of likelihood. The causes of this symptom can include unlikely diseases and medications. Furthermore, the causes may vary based on age and gender of the affected person, as well as on the specific characteristics of the symptom such as quality, time course, aggravating factors, relieving factors, and associated complaints. Use the Symptom Analysis option to explore the possible explanations for impaired taste, occurring alone or in combination with other problems.
Home Care:
Follow prescribed therapy, which may include a diet modification. For the common cold or flu , taste senses should return to normal after the illness has past. For smokers, stop smoking .
Call Your Healthcare Provider If:
- there are prolonged and unexplained taste abnormalities.
- abnormal taste is associated with other symptoms.
What to Expect:
The medical history will be obtained and a physical examination performed.
Medical history questions documenting the taste changes in detail may include: - time pattern
- How long has this change been present?
- quality
- What kind of taste change has been noticed?
- Do all foods and fluids taste the same?
- Have any changes in sense of smell been noticed?
- Does this change in taste affect the ability to eat normally?
- aggravating factors
- Is smoking a practice? How much?
- Has there been a recent cold?
- What medications are being taken?
- Have there been any recent injuries?
- Are there allergies ?
- Have teeth and gums been checked by a dentist recently?
- Have toothpaste or mouthwash recently been changed?
- relieving factors
- Is there anything that relieves this altered taste?
- Are there any foods or drinks that taste normal?
- other
A physical examination may be performed with emphasis on the taste and smelling senses and may include examination of nose, throat, and ears. Diagnostic tests may be performed based on the history and physical examination findings.
After seeing your health care provider:
If a diagnosis was made by your health care provider related to taste changes, you may want to note that diagnosis in your personal medical record.
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