What does it mean when the tympanic membrane is dull?

What does it mean when the tympanic membrane is dull?

A dull or absent light reflex from the eardrum may be a sign of a middle ear infection or fluid. The eardrum may be red and bulging if there is an infection. Amber liquid or bubbles behind the eardrum are often seen if fluid collects in the middle ear.

What does it mean when tympanic membrane is retracted?

A tympanic membrane retraction, or retracted eardrum, is a condition where the tympanic membrane, or eardrum, gets pulled toward the middle of your ear. The tympanic membrane is a thin layer of tissue found between your inner and outer ear.

Why is tympanic membrane retracted in serous otitis media?

When gas pressure within the middle ear is less than atmospheric pressure, the eardrum can become sucked into the middle ear space. This may be caused by disrupted gas exchange in the middle ear mucosa, inadequate opening of the Eustachian tube or a combination of these factors.

How do you relieve negative ear pressure?

To relieve ear pain or discomfort, you can take steps to open the eustachian tube and relieve the pressure, such as:

  1. Chew gum.
  2. Inhale, and then gently exhale while holding the nostrils closed and the mouth shut.
  3. Suck on candy.
  4. Yawn.

What causes negative pressure in ear?

When the eustachian tube does not open to allow the middle ear space to ventilate for a prolonged period of time, negative pressure is generated in the middle ear space as the mucous membranes absorb the air from the middle ear.

What causes negative middle ear pressure?

Obstruction or blockage of the eustachian tube results in a negative middle ear pressure, which will cause the ear drum to retract (suck in). In adults this is usually accompanied by some ear discomfort, a fullness or pressure feeling and may result in a mild hearing impairment and ringing in the ear (tinnitus).


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