Understanding the Recurrence of Bell’s Palsy: Causes, Risks, and Viral Triggers

Recurrence of Bell’s Palsy

In rare cases, Bell’s palsy may recur, either on the same side or the opposite side of the face. The exact cause of recurrence remains unclear, but viral infections are believed to play a significant role in triggering another episode.

Possible Viral Triggers for Recurrence:

1. Cold sores (Herpes simplex virus type 1)

2. Genital herpes (Herpes simplex virus type 2)

3. Chickenpox (Varicella-zoster virus)

4. Shingles (Reactivation of the Varicella-zoster virus)

5. Epstein-Barr virus (Linked to mononucleosis)

6. Cytomegalovirus infections

7. Respiratory illnesses (Especially upper respiratory tract infections)

8. Rubella

9. Mumps

10. Influenza

Why Recurrence Can Happen

The unfortunate reality is that certain viruses—such as herpes simplex virus (HSV), adenovirus, and herpes zoster virus—can remain dormant in the body even after the initial infection clears. For example, if you had chickenpox, measles, or mumps during childhood, the virus may lie inactive in nerve tissue for years. It can reactivate suddenly under specific conditions (such as stress, a weakened immune system, or another illness) and potentially lead to another episode of Bell’s palsy.

Good News: Low Likelihood of Recurrence

While the risk of recurrence exists, it’s important to note that not everyone with a history of these viral infections will experience Bell’s palsy again. Most individuals recover fully from their first episode and never have another occurrence.