system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Blue ear drum is seen in ?
assistant
The correct answer is  Ans. is 'a' i.e., Serous otitis media Any accumulation of fluid behind tympanic membrane causes structural changes in tympanic membrane causing it to appear blue, be it pus, blood or serous fluid. The most common cause of fluid accumulation in middle ear is serous otitis media or glue ear (most common cause) and haemotympanum. Other causes of blue tympanic membrane are glomus tumor, hemangioma of middle ear, and cholesterol granuloma.