The tongue serves as an important indicator of overall health, with its color and texture providing clues to various medical conditions. A healthy tongue is typically pink, reflecting good hydration and nutrition. Changes in color can signal different health issues: a white tongue may indicate dehydration or oral thrush, while a pale tongue could suggest iron or vitamin B12 deficiencies. A bright red tongue might be associated with vitamin deficiencies or infections. Yellow or orange discoloration often results from bacterial overgrowth or poor oral hygiene, whereas a purple or blue tongue may indicate poor circulation and requires immediate medical attention. Although a black tongue can appear alarming, it is often harmless and linked to the accumulation of dead skin cells. Doctors emphasize the importance of maintaining good oral hygiene and monitoring any persistent changes in tongue appearance, as these could indicate serious health concerns, including oral cancer. Regular dental check-ups and a nutrient-rich diet are recommended to support oral health.