Which of the following is a potential contributor to Eustachian Tube Dysfunction?

• A. URI
• B. Regular exercise
• C. High altitude exposure only
• D. Balanced diet

Answer: (A)

Eustachian tube dysfunction happens when the tube that ventilates the middle ear becomes blocked or fails to open properly, so pressure in the ear can’t be equalized. An upper respiratory infection often causes swelling and congestion in the nasal passages and around the Eustachian tube, narrowing or blocking it and making it hard for air to move in and out of the middle ear. That inflammation is a common, direct contributor to ETD.

Regular exercise, high altitude exposure, and a balanced diet don’t directly cause ETD. Exercise is generally beneficial and not a trigger, high altitude can cause ear pressure issues only if the tube is already compromised, and diet doesn’t directly affect the tube’s function.