What causes facial parasthesia?

The cause of facial parasthesia varies depending on the exact location and symptoms, according to Right Diagnosis. Most commonly, facial parasthesia results from physical nerve injuries and diseases that affect the nerves, such as diabetes, neuropathy and multiple sclerosis.

Facial parasthesia in multiple areas is a common symptom of multiple sclerosis, as noted by Right Diagnosis. However, most facial parasthesia is related to physical nerve damage, which is often the result of facial injuries, nerve entrapment and pressure applied directly to a nerve. Similarly, facial parasthesia is a common side effect of caffeine consumption and emotional stress, according to the Chicago Tribune.