The eustachian tube is a small canal that connects the middle ear to the back of the nose and upper throat (nasopharynx). Its purpose is to equalize the air pressure in the middle ear with the pressure outside it.
Eustachian tube dysfunction (ETD) occurs when the tube fails to open during swallowing or yawning. This results in a difference between the air pressure inside and outside the middle ear. It causes discomfort in the ear and temporary hearing problems.
The ear may feel blocked if the pressure outside the ear changes, but the pressure inside the ear does not change. When this happens, the eardrum cannot vibrate normally. It often occurs during altitude changes, like flying in an airplane, driving on steep hills, or scuba diving. Swallowing, yawning, or chewing usually make the symptoms go away.
ETD occurs if the tube is blocked or swollen, trapping air and fluids in the middle ear. This causes symptoms to continue beyond a few hours. Sometimes it can lead to ear damage.
Symptoms cannot be relieved by swallowing, yawning, or chewing
Pain if the blockage results in an infection
Your doctor will ask about your symptoms and medical history, and perform a physical exam. A lighted instrument, called an otoscope, will be used to look inside your ear. The doctor will check for a slight bulge around the eardrum, fluid, and swelling. If your case is severe, your may need to see an otolaryngologist, a doctor who specializes in ear disorders.
Other possible tests include:
Tympanogram—to measure pressure in the ear canal and movement of the eardrum
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a