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No doubt, seeing a black hairy tongue in the mirror is unsettling. You likely want to be sure it’s treatable and that your health is not at serious risk. Luckily, this condition is harmless and can be easily treated. Here’s how you can get your tongue back to normal and prevent the condition from developing again.


Black hairy tongue is caused by overgrowth on the surface of the tongue called hyperkeratosis. the tiny bumps on the surface of your tongue, known as the papillae, contain the same protein that’s responsible for the hair on your head. A black and hairy tongue occurs when there’s little to no stimulation on the top of your tongue. As a result, the papillae don’t shed and can grow to appear hair-like.

These “hairs” can trap food, bacteria and yeast, creating black, brown or white discoloration on your tongue. Types of mouthwash, antibiotic treatments and radiation therapy can also lead to a hairy tongue. In these cases, check with your dentist to discuss the best mouthwash and medical treatments for you, considering your health history and the potential side effects.

Risk Factors

Certain lifestyle factors can also trigger this overgrowth on the tongue. If you use tobacco or drink alcohol, black tea or coffee excessively, you have a higher risk of developing it. Poor oral hygiene is also a significant risk factor. Because these factors are more often associated with men than women, men may see a black hairy tongue more frequently. Individuals who eat a soft diet may develop the condition because soft foods do not aid in papillae shedding, notes the AAOM.


Your doctor or dentist can diagnose hyperkeratosis on the tongue visually. They will review your medical history to rule out other possible causes, such as infections, oral lesions and medications and foods that have stained the tongue. It is important to tell your medical or dental professional about all medications you are currently taking so they can determine if they may be affecting your tongue. You will likely not have any symptoms to report, as the condition is painless, but some people may experience gagging or bad breath.

Treatment and Prevention

A black and hairy tongue isn’t ultimately harmful to your overall health. It’s generally easy to treat both the condition and any secondary cause. You should be able to clean the surface of your tongue using a soft toothbrush or a tongue scraper. In severe instances, your doctor or dentist may prescribe medications or recommend mouthwashes. If this hasn’t worked to eliminate black hairy tongue, your dentist may consider using laser surgery as final treatment options.

The best prevention method is to commit to good, daily oral care and reassess your habits. Along with brushing twice daily and flossing, you might consider using a tongue scraper to clean your tongue. Refraining from tobacco use and limiting your alcohol, black tea and coffee intake may also help. With a good oral care plan in place that includes regular dental visits, you can keep all the parts of your mouth healthy.