Black hairy tongue is MOSTLY seen in which type of patients?

Black hairy tongue is predominantly associated with poor oral hygiene. This condition occurs when there is an accumulation of keratin on the filiform papillae of the tongue, which then traps food particles, bacteria, and dead cells, leading to a discolored appearance.

In patients with poor oral hygiene, the lack of regular cleaning can result in these papillae becoming elongated and discolored, contributing to the characteristic black appearance. While it is true that this condition can occur in patients with underlying health issues such as diabetes, HIV, or those undergoing chemotherapy, the key factor that leads to the development of black hairy tongue centers around inadequate oral care. Proper oral hygiene practices, including regular brushing of the tongue, can significantly reduce the risk of this condition, emphasizing the importance of maintaining good oral health habits.