A fissured tongue is a harmless condition where grooves or furrows appear on the tongue’s surface. Unlike a typical smooth tongue with tiny bumps called papillae, a fissured tongue has noticeable cracks or wrinkles. While an unusual appearance might suggest a problem, this condition is a natural variation and does not require medical treatment.
How Common Is It?
Fissured tongues are found in a small percentage of people, with some regions reporting higher occurrences than others. It is slightly more common in men and tends to become more noticeable with age.
Symptoms and Appearance
A fissured tongue can have:
- A deep groove runs down the center, with smaller grooves branching out.
- Multiple crisscrossing grooves, divide the tongue into segments.
- Random grooves that do not connect.

In most cases, a fissured tongue causes no discomfort. However, if food or bacteria get trapped in the grooves, it may lead to:
- Bad breath.
- Swelling or inflammation.
- A burning sensation in the mouth.
- Good oral hygiene can help prevent these issues.
What Causes It?
The exact cause remains unknown, but genetics may play a role since the condition often runs in families.
Is Treatment Needed?
A fissured tongue itself does not require treatment. However, if it leads to inflammation or infection due to trapped food or bacteria, a healthcare provider may need to treat it. Proper oral hygiene, including brushing the tongue and rinsing the mouth regularly, can help prevent complications and keep the tongue healthy.