Cause of ringing ear after a stroke?

Tinnitus is the perception of sound in the absence of an external sound source. It is a common symptom after a stroke, occurring in up to 50% of survivors.

The exact cause of tinnitus after a stroke is not fully understood, but it is thought to be related to damage to the auditory system, which can occur at various points along the pathway from the ear to the brain. Some potential causes include:

* Damage to the cochlea: The cochlea is a spiral-shaped organ in the inner ear that contains fluid and hair cells that convert sound waves into electrical signals. Damage to the cochlea, such as from a stroke, can disrupt this process and lead to tinnitus.

* Damage to the auditory nerve: The auditory nerve carries electrical signals from the cochlea to the brain. Damage to the auditory nerve, such as from a stroke, can interrupt the transmission of these signals and cause tinnitus.

* Damage to the brain: The brain is responsible for processing and interpreting sound signals. Damage to certain areas of the brain, such as the auditory cortex, can lead to tinnitus.

Tinnitus can be a very distressing symptom, but it is often temporary and will improve over time. However, if tinnitus persists or is severe, there are treatments available to help manage the condition.