Oral leukoplakia (OL) is a clinical term for a nonremovable white lesion that is not easily recognisable as any particular condition and therefore requires further investigation.
Oral leukoplakia manifests as patches that are bright white and sharply defined. The surfaces of the patches are slightly raised above the surrounding mucosa.
Oral leukoplakia may be homogenous (uniform lesion often with a fissured surface), or nonhomogeneous (with surface irregularity and textural or colour variation for example speckled-see below given photograph.