Ringing in the ear, or tinnitus, is a widespread condition that affects an estimated 50 million Americans. Some people describe it as a hissing, roaring, whooshing or buzzing sound instead of ringing. It may be sporadic or constant, and is a symptom of an underlying condition rather than a disease itself. There are many factors that can cause tinnitus.
What Are the Causes of Tinnitus?
Tinnitus is categorized as being either pulsatile or nonpulsatile.
People who suffer from pulsatile tinnitus report hearing the sound of their own pulse. It is caused by abnormal blood flow within the arteries of the neck or inside the ear, and is fairly rare. Possible causes include:
Fluid in the middle ear.
High blood pressure.
Head and neck tumors.
Nonpulsatile tinnitus – ringing in the ears not accompanied by any type of rhythm – is considerably more common. It can be caused by a variety of conditions including:
Presbycusis (age-related hearing loss).
Otosclerosis (stiffening of the bones in the middle ear).
Head or neck trauma.
Tinnitus is also classified as being either subjective (heard only by the patient) or objective (ringing can be heard by an impartial observer, such as a doctor). Most cases of tinnitus are subjective in nature.
Tinnitus Diagnostics include a test battery:
c) Pitch Matching
d) Residual Inhibition