Labyrinthitis Ossificans (LO) is the 2nd most common pathology of the inner ear (most common is inner ear malformations). It is defined as pathological ossification of the membranous labyrinth in response to inflammatory or destructive process. LO usually develops as a sequela of previous infection which gets disseminated via various routes: hematogenic (via cochlear vasculature secondary to viral infections), meningogenic (via cochlear aqueduct from the subarachnoid space), tympanogenic (as a sequela of otitis media, i.e. the spread of infection via the round window),’ or posttraumatic. LO affects the enchondral layer of the osseous labyrinth but does not cross the endosteal layer. In pathological conditions like meningitis, otosclerosis, Paget’s disease, trauma, ototoxicity, malignant infiltration, vascular obliteration of labyrinthine artery, or other infections, the new disorganized woven bone replaces the normal healthy bone and obliterates the spaces of the otic capsule