What Your Tongue Color Says About Your Health

Ever wonder what your tongue color says about your health? Find out the meaning behind different colors and when to see a doctor.

A woman sticking her tongue out with her eyes closed
A woman sticking her tongue out with her eyes closed

Have you ever noticed your tongue while brushing your teeth and found it a bit whiter than usual, or spotted a strange patch? Most of us don't give our tongues a second thought, but they can actually offer some interesting clues about what's going on inside our bodies.

So, what your tongue color says about your health can be pretty useful. Let's go through some common shades and what they could mean, so you know what's normal and what might be worth getting checked out.

What Does a Healthy Tongue Look Like?

First, let's cover what a healthy tongue look like. A healthy tongue is typically pink, with a thin, slightly white coating on top. It’s also covered in tiny bumps called papillae, which give it its rough texture. The exact shade of pink can vary a little from person to person, and that's perfectly fine. It's the major changes in color and texture you want to pay attention to.

A Guide to Different Tongue Colors and Their Meanings

If your tongue is any color other than its normal pink, it might be trying to tell you something. Let's check them one by one.

White Tongue Color

A white tongue can look pretty alarming, but don't panic. A white tongue is a thick, white coating on all or part of your tongue's surface. White tongue looks unappealing, but it's usually harmless and temporary.

Common causes of white tongue:

Poor Oral Hygiene: When you don't brush and floss regularly, dead cells and bacteria build up on your tongue like dust on a shelf.

Dehydration: Not drinking enough water can make your mouth dry, leading to that white, fuzzy feeling.

Oral Thrush: This is a yeast infection that causes thick, white, cottage cheese-like patches. It's often seen in babies, the elderly, or people with weakened immune systems.

Leukoplakia: This condition causes white patches that can't be scraped off. It's often linked to smoking or tobacco use and can sometimes be a precursor to cancer, so it's important to get it checked out.

See a doctor if your white tongue comes with pain, lasts more than two weeks, or appears alongside fever or difficulty swallowing.

Red Tongue Color

A tongue that looks bright red, sometimes called a "strawberry tongue," can be a sign of a few different things.

Common causes of red tongue:

  • Vitamin Deficiency: A lack of vitamin B12 or folic acid can cause your tongue to take on a reddish appearance.

  • Scarlet Fever: This infection causes a high fever and a very red, bumpy tongue.

  • Allergic Reaction: A reaction to a certain food or medication can sometimes cause your tongue to become red and swollen.

Yellow Tongue

With yellow tongue, you develop a yellow coating on your tongue due to the buildup of dead skin cells. While this sounds scary, it's often fixable with better oral care.

Common causes of yellow tongue:

  • Bacteria Overgrowth: Poor oral hygiene can lead to a buildup of bacteria on your papillae, giving your tongue a yellow tint.

  • Medications: Pepto-Bismol and other bismuth subsalicylate-containing medicines can turn your tongue colors that range from yellow to black.

  • Smoking: Tobacco stains everything it touches, including your tongue.

  • Jaundice: In rare cases, a yellow tongue can be a sign of liver problems, which also causes the skin and eyes to turn yellow.

  • Fungal Infections: A white-yellow or yellowish tongue can be a sign of a fungal infection in the mouth.

Black Tongue Color

Black tongue typically happens when the tiny hairs on your tongue (papillae) grow longer than normal and trap bacteria and debris. This creates a carpet-like appearance that can look black, brown, or dark green.

Common causes of black tongue:

This can be brought on by poor oral hygiene, smoking, drinking a lot of coffee or black tea, or as a side effect of some medications.

While it looks alarming, it typically goes away with good brushing and by addressing the cause.

Purple or Blue Tongue

This is a less common color, and one you should take seriously.

  • Poor Circulation: A purplish tongue can be a sign that your blood isn't circulating well, possibly due to a heart condition.

  • Lack of Oxygen: A blue tongue can mean there isn't enough oxygen in your blood, which could be caused by lung or kidney issues. According to medical resources like the Cleveland Clinic, a blue tongue is a reason to seek medical attention right away.

When Should You See a Doctor About Your Tongue Color?

Most changes in your tongue's appearance are temporary and harmless. But it's a good idea to check in with a doctor or dentist if you notice:

  • A color change that lasts for more than two weeks.

  • Pain, swelling, or a burning sensation on your tongue.

  • New lumps, bumps, or sores that don't go away.

  • Difficulty chewing, swallowing, or speaking.

Your tongue is more than just a tool for tasting food—it's a helpful indicator of your overall well-being. So next time you're brushing your teeth, take an extra second to see what your tongue color says about your health. It’s one of the easiest health check-ups you can do.

Source: Red, white or yellow? What your tongue says about your health