Black Spots Inside Cheek: Evaluating the Causes of Oral Lesions

Understanding Black Spots Inside the Cheek

Finding a black spot or dark lesion inside the cheek can be alarming. However, these oral spots have various possible causes. While a few may indicate serious medical issues, most dark spots in the mouth are harmless.

Causes of Black Spots Inside Mouth

Some common reasons for black, brown or dark blue spots inside the cheek include:

• Pigmented lesions like melanotic macules
• Amalgam tattoo from metal dental fillings
• Oral melanotic nevi (moles)
• Mucoceles (harmless cysts)
• Chemical burns from smoking or chewing tobacco

Rarer oral conditions like melanoma or Kaposis sarcoma may also initially resemble a dark spot before growing bigger. Checking with a dentist helps determine the exact cause.

Appearance of Oral Spots

Location, size, shape and color provide clues on the potential identity of inner mouth spots:

• Location - Common along inner cheeks, under tongue, gums or roof of mouth
• Size - Often small, less than 6mm though some span wider
• Edges - Typically uniform, not ragged or irregular borders
• Color - Ranges from black to dark brown to dark blue tones

Any spot with uneven shape, sudden growth or color changes warrants an urgent trip to the dentist to check for oral cancer risks.

Evaluating Specific Causes of Oral Spots

With various possible reasons for strange spots inside the mouth, getting a clear diagnosis matters. Lets explore some common causes of dark cheek spots in more detail:

Amalgam Tattoos

A classic culprit behind mysterious oral spots, amalgam tattoos occur when metals like silver, mercury or copper leach into the soft tissues over time.

This most often results from corrosion or abrasion to metal dental fillings. As the tiny metal particles scatter, they can embed in the gums, cheeks or roof of the mouth - resembling a dark tattoo.

These amalgam-related spots are harmless, but some individuals opt to have them removed for cosmetic reasons if prominent.

Oral Moles and Melanotic Macules

Like moles on the skin, pigmented areas may also emerge inside the mouth. The medical name for an oral mole is melanotic nevus or melanocytic nevus.

These common melanin-producing lesions often first surface in childhood or adolescence. While alarming if new or rapidly changing, oral moles with stable appearance rarely indicate skin cancer spreading.

Melanotic macules share similar dark pigmentation resulting from melanocyte cells but remain completely flat rather than raised moles.

Mucoceles

Clear fluid-filled bumps called mucoceles can also mimic bluish-black spots inside the mouth, especially along the inner lips and cheeks.

Mucoceles form from damaged salivary glands, causing saliva to pool into a soft tissue cyst. Although annoying, they are not harmful and often disappear on their own or after minimally invasive drainage.

Chemical Burns from Smoking

Tobacco smoking and chewing commonly irritates the tender mouth tissues. Constant chemical and heat exposure inside the cheeks may lead to thickened precancerous patches (leukoplakia).

The affected gum, cheek or lip areas then appear whitish, red or dark brown to black depending on severity. Quitting and dental exam are recommended if these stained lesions wont heal.

When to Seek Emergency Evaluation

While most mysterious spots inside the mouth are benign, any questionable lesions deserve professional inspection to confirm.

See a dentist, primary care physician or visit the ER right away if any mouth spots have worrying traits like:

• Sudden or rapid enlargement
• Bleeding when touched
• Irregular shape with ragged borders
• Combination of dark and light pigments
• Presence for over 2 weeks without shrinking
• Pain, numbness or odd sensation

Catching high risk lesions early makes a world of difference. When in doubt, reach out to a healthcare professional promptly.

Assessing the Risk of Oral Cancer

Specifically, unusual spots demand urgent oral cancer screening when risk factors like smoking or HPV infection exist. Though representing less than 5% of all malignancies, mouth cancer rates have recently spiked.

Early stage symptoms like soreness, odd patches and skin-textured lumps prove more treatable. Treatment delays permit tumors to invade deeper mandibular bone, muscle and connective tissues.

Biopsy Testing

The only way to conclusively diagnose strange cheek spots is through biopsy analysis in pathology. A tiny fraction of tissue gets extracted and inspected under a microscope.

If abnormal cells are detected, additional imaging helps determine the lesions size and spread. CT scans, MRIs and PET scans provide 3D visuals of complex head and neck anatomy to guide surgery and radiation planning.

Safe, Effective Treatments for Benign Cheek Spots

Once deemed harmless after clinical workup, dark skin lesions in the mouth often require no therapy. But if annoying or unsightly enough, removing benign spots remains fairly straightforward with these dental procedures:

Ablative Lasers

Precise modern lasers like CO2 systems allow dentists to direct strong beams that vaporize a lesion down to bare tissue.

The lasers heat energy essentially burns away pigmented areas and cysts, sealing small blood vessels to prevent bleeding or scarring.

Cryosurgery

Another approach freezes abnormal tissue using liquid nitrogen cryotherapy spraying. The extreme cold forms intracellular ice crystals that rupture cells from within.

This cryoablation technique kills off benign lesions while minimizing damage to surrounding healthy oral mucosa. Natural healing then restores normal texture.

Surgical Excision

Direct excision to cut out lesions may help smaller benign spots or collect larger tissue samples for biopsy. This conventional method requires sutures and adequate numbness.

Modern tools like electrocautery needles and microdebriders afford more precision with less bleeding, swelling and post-op pain.

Discuss options with an oral surgeon if your dark mouth spot seems best handled by these minimally invasive in-office treatments.

When to Seek Ongoing Monitoring

For diagnosed benign lesions without current bothersome signs, re-evaluation in 6-12 months proves reasonable. Intervals may lengthen over years if spots remain stable.

Meanwhile, take photos and measurements of mouth spots to help compare changes over time. Report any observed growths, color changes, pain or bleeding right away even if a recent checkup showed nothing concerning.

Commit to regular dental cleanings and self oral cancer screening regardless. And curb tobacco habits that worsen cheek spot risks moving forward.

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.