What does it mean when there are cracks on the tongue?

Under normal circumstances, tongue fissures may be caused by factors such as aging, dehydration, vitamin B12 deficiency, iron-deficiency anemia, or chronic atrophic gastritis. Treatment can be carried out under medical guidance through general measures or medication. Specific analysis is as follows:

1. Aging

With advancing age, the papillae and muscle tissues on the tongue may gradually atrophy, leading to the development of tongue fissures. Maintaining good oral hygiene and gently cleaning the tongue surface regularly with a soft-bristled toothbrush can help improve the condition.

2. Dehydration

When dehydrated, saliva secretion decreases, failing to adequately lubricate the oral mucosa, which may lead to a dry tongue and the formation of cracks. Ensure adequate fluid intake—aim for at least eight cups of water daily—and avoid prolonged exposure to dry environments.

3. Vitamin B12 Deficiency

Vitamin B12 is essential for maintaining the health of nerves and mucosal tissues. A deficiency may cause thinning of the tongue's mucosa, making it prone to cracking. Increase dietary intake of foods rich in vitamin B12, such as animal liver, milk, and eggs.

4. Iron-Deficiency Anemia

Iron-deficiency anemia is typically caused by insufficient iron levels in the body. Iron deficiency impairs hemoglobin synthesis, potentially reducing the blood’s oxygen-carrying capacity, leading to tongue hypoxia and fissures. This condition is often accompanied by symptoms such as fatigue and pallor. Follow medical advice to take medications such as ferrous fumarate tablets, compound ferrous sulfate granules, or iron dextran tablets.

5. Chronic Atrophic Gastritis

Chronic atrophic gastritis is usually caused by Helicobacter pylori infection. It may impair the absorption of vitamins and minerals in the body, thereby affecting tongue health and causing fissures. Symptoms often include indigestion and abdominal pain. Under medical supervision, medications such as omeprazole enteric-coated capsules, lansoprazole enteric-coated tablets, or ranitidine hydrochloride tablets may be used for treatment.

Maintain a balanced diet in daily life, avoid spicy and irritating foods, and prevent the occurrence of tongue fissures.