What Causes Pulsatile Tinnitus?
From the outset, you should know that what causes pulsatile tinnitus, in a great many cases, cannot be precisely identified, and those cases are called idiopathic, which simply means unknown cause. Still, pulsating tinnitus can be related to heightened pressure in the head (hydrocephalus), hardening or constriction of the arteries, and lower than normal blood viscosity. Clicking sounds may be caused by contractions of the middle ear and palatal muscles. When the pulsing sound closely corresponds to the rhythm of the heart it is generally due to a blood vessel malformation in the head or neck area. Low humming noise may be caused by Meniere’s disease, especially when vertigo and intermittent hearing loss is also present. The following list, while not exhaustive, includes other commonly known pulsatile tinnitus causes.
