What causes a cracked tongue?

Fissured tongue, also known as scrotal tongue, is a relatively common benign condition of the tongue, mainly characterized by deep grooves and furrows appearing on the tongue's surface. This condition is usually associated with the following factors: 1. Genetic factors: Fissured tongue sometimes shows a familial inheritance pattern and may be related to specific genes. 2. Nutritional deficiencies: Long-term deficiency of B vitamins, especially B2 (riboflavin) and B3 (niacin), may lead to changes in the tongue, including the development of fissures. 3. Oral environment: Poor oral hygiene and excessive growth of bacteria or fungi in the mouth, such as Candida infection, may affect tongue health. 4. Age: With aging, tongue muscle atrophy may occur, making the grooves more pronounced. 5. Autoimmune diseases: Certain autoimmune diseases, such as glossitis or lupus erythematosus, may also be associated with fissured tongue. Maintaining good oral hygiene, eating a balanced diet, and ensuring adequate intake of vitamins, especially B vitamins, can help prevent and improve fissured tongue. If symptoms persist or worsen, it is advisable to consult a doctor for evaluation and necessary treatment.