Black dot on side of tongue?

A black dot on the side of the tongue can be caused by several factors, including pigmentation, irritation, or certain medical conditions. It might be a harmless condition, such as a benign mole or a result of tobacco use. However, if the black dot persists, changes in appearance, or is accompanied by other symptoms like pain or swelling, it is advisable to consult a healthcare professional for proper evaluation and diagnosis.