White Coating on Tongue and Unexplained Fever: What Could It Mean? - Otolaryngology

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White coating on the tongue and body heat?


I would like to ask the doctor, I previously noticed a white coating on my tongue, and sometimes there is a slight yellowish tint in the middle of my tongue.
However, at times the yellowish tint disappears, leaving only the white coating.
In the past few weeks, I have been experiencing intermittent fever.
Can you please tell me what is happening with my body? What could be the problem? I am very anxious...

Nìmíng, 20~29 year old female. Ask Date: 2012/10/10

Dr. Zheng Jueyi reply Otolaryngology


Hello, the presence of white coating on the tongue may be caused by dietary factors or infections from fungi or bacteria.
Sometimes, abnormalities in the immune system can trigger these infections.
If you frequently experience night sweats or unexplained fevers, it is advisable to seek medical evaluation to determine if there are any underlying immune issues.
Wishing you safety and health.
Sincerely, Dr.
Cheng Jue-Yi, Attending Physician, Department of Otolaryngology, Taoyuan Hospital, Ministry of Health and Welfare.

Reply Date: 2012/10/10

More Info


The presence of a white coating on the tongue, sometimes accompanied by a yellowish tint, along with intermittent unexplained fever, can be indicative of several underlying health issues. It is understandable to feel anxious about these symptoms, as they can be associated with various conditions ranging from mild to more serious.

Firstly, the white coating on the tongue is often a sign of oral thrush, which is a fungal infection caused by an overgrowth of Candida yeast. This condition can occur when the immune system is weakened, or due to factors such as antibiotic use, diabetes, or other underlying health issues. The yellowish tint may suggest the presence of bacteria or other infections, which can also contribute to the appearance of the tongue.

The intermittent fever you are experiencing could be related to an infection, which might be localized (such as in the throat or mouth) or systemic (affecting the whole body). Common causes of fever include viral infections, bacterial infections, and inflammatory conditions. In some cases, autoimmune disorders can also lead to fever and changes in oral health.

Given your symptoms, it is crucial to consider the following potential causes:
1. Infections: Both viral and bacterial infections can lead to fever and changes in the oral cavity. For instance, strep throat or other upper respiratory infections can cause fever and may also lead to a white coating on the tongue due to inflammation and infection.

2. Oral Thrush: As mentioned, this fungal infection can cause a white coating on the tongue and may be accompanied by fever if the infection spreads or if the immune system is compromised.

3. Dehydration or Poor Nutrition: Sometimes, inadequate hydration or nutrition can lead to changes in the tongue's appearance and can also contribute to fever, particularly if the body is unable to maintain homeostasis.

4. Autoimmune Disorders: Conditions such as lupus or Sjögren's syndrome can manifest with oral symptoms and fever. These disorders affect the immune system and can lead to a variety of symptoms.

5. Gastrointestinal Issues: Conditions affecting the gastrointestinal tract, such as inflammatory bowel disease, can also present with fever and oral symptoms.

Given the complexity of your symptoms, it is advisable to seek medical attention. A healthcare provider can conduct a thorough examination, including a physical assessment and possibly laboratory tests, to determine the underlying cause of your symptoms. They may perform a throat swab, blood tests, or other diagnostic procedures to identify any infections or systemic issues.

In the meantime, maintaining good oral hygiene, staying hydrated, and monitoring your symptoms can be beneficial. If you experience worsening symptoms, such as persistent high fever, difficulty swallowing, or significant pain, it is essential to seek immediate medical care.

In summary, while the symptoms you are experiencing can be concerning, they are not uncommon and can often be managed effectively with appropriate medical intervention. Do not hesitate to reach out to a healthcare professional for a comprehensive evaluation and tailored treatment plan.

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