Blue eardrum is seen in
Serous otitis media is an insidious condition characterized by an accumulation of nonpurulent effusion in the middle ear cleft. In otoscopy, the tympanic membrane is often dull and opaque with loss of the light reflex. It may appear yellow, grey or bluish in colour. Reference: Diseases of Ear, Nose and Throat, PL Dhingra, Shruthi Dhingra,7th edition, pg no.69
Serous otitis media
CSOM
Perforation
None
Ear