Cracked Tongue: Causes, Treatment, & Recovery

What is Cracked Tongue?

A cracked tongue, also called a fissured tongue or lingua plicata, is a harmless condition, characterized by one or several cracks running over the tongue's surface. In most cases, a cracked tongue will be easy to spot as the tongue's smooth surface appears visibly broken up.

While some changes in the texture or appearance of the tongue can signal an underlying health condition, a fissured tongue itself is not considered a disease. However, its presence is sometimes associated with other underlying conditions. The condition is cosmetic, not harmful.

How Common are Tongue Fissures?

If you are wondering 'why is my tongue cracked', then you aren't alone. Estimates vary, but fissured tongues are thought to affect anywhere between 2% and 20% of people across the globe.

Cracked tongues are considered to be more prevalent in those assigned male at birth and people above 50, with some research also suggesting that fissures are more common in certain areas of the world.

Symptoms of a Cracked Tongue

Fissured tongue symptoms should not extend beyond the cracks and grooves you see on your tongue's surface. These cracks will not appear in any set ways, and when looking at a fissured tongue, you may see:

• Cracks in the tongue ranging from 2 to 6mm deep
• A singular large groove in the center of the tongue, with smaller cracks spreading off it
• Seemingly random, unconnected cracks
• Cracks that extend to the edges of the tongue

Grooves on the tongue can make it more difficult to clean properly and lead to the buildup of bacteria in the mouth. If this happens, you may experience additional fissured tongue symptoms, including:

• A burning or sore cracked tongue
• Persistent bad breath
• Glossitis

Causes of a Cracked Tongue

Unfortunately, doctors still do not know exactly what causes fissured tongues. Some research suggests that the condition could be linked to genetics, but that link is not definitive.

Though we are unsure of the exact cause, research has shown that a cracked tongue is more likely to appear alongside certain conditions, including:

• Vitamin Deficiencies: Cracks in the tongue can accompany malnutrition and deficiencies in key vitamins. Studies have indicated that people low in B vitamins, zinc, and iron may be more susceptible to fissured tongues.
• Psoriasis: The autoimmune condition psoriasis can lead to raised and sore skin and is sometimes associated with a fissured tongue.
• Sjögren's Syndrome: This autoimmune condition is also associated with fissured tongues in some cases.
• Melkersson-Rosenthal Syndrome: A neurological condition which can cause facial swelling and a cracked tongue.
• Geographic Tongue: A condition which causes raised spots on the tongue and is frequently seen in individuals who also have a fissured tongue.

As well as various underlying health conditions, there are certain risk factors associated with the development of a fissured tongue, including:

• Wearing dentures
• Drinking alcohol regularly
• Coming into contact with allergens

Diagnosing a Cracked Tongue

Cracked tongue diagnosis is a relatively easy procedure for a doctor. A visible examination where you extend your tongue should be sufficient to determine whether you are living with the condition.

If the doctor is unsure of the underlying cause of your fissured tongue, they may perform some tests to determine it. Blood tests to check for deficiencies or certain immunodeficient conditions may be performed, as well as any other test your medical practitioner deems necessary.

Cracked Tongue Treatment

In most cases, cracked tongue treatment will not be necessary, as the condition is benign and poses no danger to your health. If your cracked tongue has led to the buildup of bacteria in the mouth and an infection, you may need a professional dental cleaning, or your doctor may just advise you to pay more attention to oral care at home.

If your doctor believes that your cracked tongue is a symptom of allergens, then they may advise you to stay clear of any triggers and see if that helps resolve any associated soreness or inflammation.

There is no set answer to the question of how to heal a sore, cracked tongue, but with a proper understanding of the cause behind it, a doctor can help advise a treatment plan which could help.

Keep Your Mouth Clean with Oral-B

A cracked tongue may look concerning, but it's typically harmless and often doesn't require treatment. However, maintaining a high standard of oral hygiene is essential to prevent debris from settling into the grooves and reducing the risk of irritation or infection.

A consistent and thorough oral care routine is a key part of everyday well-being, and it’s especially important when managing a fissured tongue. With the iO Series, you can achieve a deep, effective clean, with the ability to reach difficult areas while remaining gentle on sensitive parts of the mouth.

Using the right tools each day helps protect not just your tongue, but your entire oral environment. To help combat any bad breath associated with a cracked tongue, try swishing daily with a fluoride rinse like Crest Pro-Health Advanced. The alcohol-free formula kills bad breath germs, strengthens enamel, and leaves your mouth feeling refreshed. And don't forget, regular dental visits are essential for monitoring your oral health and catching any potential issues early. Using an advanced toothbrush like one from the Oral-B iO Series can help you maintain your oral care with confidence and ease.