What causes dark spots on the tongue?

Noticing black spots on your tongue, whether they’re small dots or more noticeable areas, can be concerning, even if you take great care of your oral health. If you see any dark spots on your tongue, it’s essential to let your dentist or doctor know for an accurate diagnosis. In the following information, we’ll explore potential reasons behind these black spots on the tongue.

Natural Appearance of Your Tongue:

Sometimes, those black dots on your tongue might be totally normal, even if you’ve never really noticed them before. Picture your tongue as a muscle with taste buds covering it. When you chew, your tongue shuffles food around, and the taste buds send signals to your brain about flavors. The naked eye can see these taste buds, and they might stand out, looking like dark dots, especially if they get stained by red wine or coffee.

Just like pigmentation gives color to hair, skin, and eyes, it also plays a role in your tongue’s appearance. If there’s an excess of pigmentation, it can lead to harmless dark patches or spots on your tongue. According to a study in the Journal of Community Hospital Internal Medicine Perspectives, black spots on the tongue could be a sign of a hyperpigmentation disorder. The good news is that black patches caused by hyperpigmentation or chemotherapy often fade away a few weeks after the treatment is done.

What Causes Dark Spots on The Tongue?

Dark spots on the tongue are often caused by a condition called Tongue Pigmentation or Pigmented Fungiform Papillae of the Tongue (PPT). These spots can range from specks to more noticeable dark patches. While anyone can develop tongue pigmentation, it’s more common in individuals with darker skin tones than in those with lighter skin. This condition tends to show up during childhood but can also develop in adults.

How do dark spots on the tongue appear?

Dark spots on the tongue can vary in appearance based on the type of papillae affected. Papillae are small bumps on the tongue, and there are four main types:

Filiform: Resemble threads and are located near the top and mid-section of the tongue.

Fungiform: Take on a mushroom-shaped appearance and are found toward the front of the tongue.

Foliate: Develop on the outer corners of the tongue.

Circumvallate: Appears on the top of the tongue toward the back of the mouth.

So, the look of dark spots depends on which type of papillae is involved, creating a variety of shapes and locations on the tongue.

Injury and Your Tongue:

If you’ve recently had an oral piercing or experienced an injury to your tongue, it might lead to the appearance of black spots. Tongue damage can result in a sore with a dark color. Whether it’s from a bite, cut, or other trauma, a lingering black spot could be a sign of ongoing damage. If the sore persists, causes discomfort, or becomes infected, it’s crucial to reach out to your oral care provider for suitable treatment.

Chemical Exposure to Your Tongue:

Exposure to certain chemicals can react with the acids on your tongue’s surface, causing it to turn black. For instance, the chemical bismuth found in some medications for upset stomach may be responsible for this color change, initially appearing in patches. Once you discontinue the use of bismuth, your tongue should return to its normal pink color.

Tongue Cancer:

Although rare, dark patches on the tongue could indicate a serious condition like cancer. These patches may also present as scabs or persistent sores. Look out for additional signs such as lumps, swelling, or difficulty swallowing. If you experience any of these symptoms, seek immediate medical attention. Early detection enhances the effectiveness of treatment. Light gray spots on the side of the tongue could be a type of leukoplakia known as oral hairy leukoplakia, associated with autoimmune diseases, according to The Mayo Clinic.

Treating Black Spots on the Tongue:

Improving oral hygiene is the first step in addressing black spots on the tongue. Brush your teeth twice a day with a soft-bristle toothbrush, floss daily, and remember to brush your tongue. If the spots disappear after brushing, they may not require further treatment. However, if they persist, it’s advisable to consult your oral care provider. They can identify the cause and recommend appropriate treatment.

Understanding the causes of dark spots on the tongue is essential for maintaining optimal oral health. While many cases of discoloration may be benign, it’s crucial not to ignore persistent or unusual dark spots. Poor oral hygiene, tobacco use, and certain foods may contribute to staining. As a result, it’s important to emphasize the importance of maintaining a consistent and thorough oral care routine. Regular dental check-ups, coupled with a proactive approach to oral hygiene, empower individuals to address and prevent dark spots on the tongue, ensuring a healthier and brighter smile.