Multifunctional organ of the human body without a bone yet strong is the tongue. It mainly consists of the functional portion of muscle mass, mucosa, fat and the specialized tissue of taste i.e. the papillae. Diseases may either result from internal/ systemic causes of extrinsic causes like trauma, infection, etc. A new method for classification has been proposed in this review for diseases of tongue. This review mainly focuses on encompassing almost each aspect that the body reflects via its mirror in mouth, the tongue.