What's Causing This Black Spot on My Tongue?

What Causes Black Spots on the Tongue?

Finding a black spot on your tongue can be alarming. However, in most cases, harmless causes are responsible for painless dark spots arising on the tongue.

Some common factors that can lead to black patches or dots include tobacco use, trauma, fungal infections and natural pigmentation.

Rarely, oral cancer presents as a dark tongue lesion. So its important to monitor any spots and have your dentist evaluate any unusual tongue changes during routine visits.

Common Causes of Black Tongue Spots

Tobacco Use

Smoking cigarettes, cigars, pipes or chewing tobacco is linked to development of dark tongue spots in users.

The main culprit is tar in tobacco, which discolors sensitive tongue tissue leading to dark dots or a general dark coating on the tongue.

Quitting smoking and eliminating smokeless tobacco use allows the tongue to heal and return to a healthy pink color over time through the bodys renewal processes.

Trauma

Injury to the tongue from accidental bites, cuts, sharp foods like chips or dental procedures can cause bleeding under the surface. As blood collects, it leads to purplish or dark bruise-like spots on the tongue.

Using caution when eating crunchy or sharp items can prevent biting your tongue. But occasionally minor trauma does occur. Any tongue spots from trauma typically heal within 7-14 days.

Hairy Black Tongue

A harmless but visually unappealing condition called black hairy tongue results in dark elongate spots on the tongue surface. Its caused by overgrowth and staining of the tiny hair-like papillae on the tongue.

Risk factors include poor oral hygiene, smoking, dry mouth, antibiotic use and excessive coffee/tea consumption. Gentle tongue scraping helps exfoliate the stained papillae away and prevent its return.

Pigmented Spots

In some cases, painless dark dots on the tongue are simply caused by natural pigmentation and melanin concentrations, similar to a mole or freckle.

Genetics can play a role in pigmented tongue spots. They may fade over time but often some degree of dark spot remains long term without posing health issues.

Fungal Infections

Oral thrush is a fungal infection caused by an overgrowth of yeast called Candida. It can appear as cream or yellow coated spots on the tongue and inner cheeks.

People with weakened immune systems are most at risk of developing thrush fungal infections in the mouth leading to painful plaque buildup and inflammation.

When to See Your Doctor

Schedule an urgent dental appointment if you notice any of the following accompanying a new tongue lesion:

• Severe pain
• Rapid growth or enlargement
• Bleeding that wont stop
• Numbness in the tongue or mouth
• Trouble swallowing or speaking
• White, red or mixed coloration
• Irregular shape of the lesion

While most dark tongue spots are harmless, evaluating any new or unusual spots, especially when symptoms are present, can rule out serious causes like oral cancer.

Oral Cancer Screenings

Your dentist carefully examines all areas of the tongue and mouth feeling for any lumps, tissue changes or abnormal lesions at regular checkups.

An oral cancer screening is recommended annually, but those at high risk may need screenings every 3-6 months depending on individual risk factors.

Using magnification and bright lighting ensures best visualization of the mouth tissues to analyze for indications of possible malignancy that require biopsy.

Diagnosing Black Tongue Spots

To diagnose whats causing dark tongue spots, your dentist gathers a complete history asking about:

• Recent illness
• Medications
• Tobacco habits
• Oral hygiene routine
• Trauma
• Location, size, pain and appearance of the lesion
• Duration the spot has been present

Then your doctor performs a visual oral exam possibly using magnification, staining and light techniques to highlight specific features of suspicious areas.

Biopsy for Diagnosis

If there is any question regarding the potential seriousness of a questionable tongue lesion, a small tissue sample will be taken via biopsy to examine microscopically.

The pathologic analysis can definitively differentiate harmless spots from precancers or oral malignancy needing further treatment.

Treatment for Black Spots on Tongue

Harmless Spots

For trauma-related bruising, tobacco staining or harmless pigmented lesions, no specific treatment is required other than monitoring the dark tongue spot.

Advising tobacco cessation and improving oral hygiene helps prevent recurrence of smoking-related discoloration or hairy tongue.

Medicated Antifungal Treatment

With a fungal overgrowth like oral thrush, topical antifungal rinses or oral dissolving tablets can clear up infection causing plaque formation on the tongue.

Treating any underlying condition lowering immunity is also important to prevent return of painful thrush outbreaks in the mouth.

Premalignant Lesion Removal

If a lesion is diagnosed as leukoplakia, a white patch that can potentially become cancerous if left untreated, the abnormal tissue is surgically removed.

Follow up appointments monitor for recurrence and sample cell changes through repeat biopsy to catch any dysplasia turning malignant early.

Oral Cancer Interventions

Dark painful tongue lesions confirmed to be oral squamous cell carcinomas require more aggressive treatment such as:

• Surgery to remove tumor and lymph nodes
• Radiation to eradicate abnormal cancer cells
• Chemotherapy systemically

Reconstructive surgery may be required after tissue removal to help restore oral function.

Any noticeable or suspicious changes of the tongue should be evaluated promptly by your dentist to guide appropriate intervention.

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Always consult with a healthcare professional before starting any new treatment regimen.