Facial paralysis is the loss of voluntary muscle movement on one or both sides of the face due to damage or dysfunction of the facial nerve (cranial nerve VII). It can develop suddenly, as in Bell’s palsy, or result from infections, stroke, tumors, trauma, or neurological disorders. Symptoms may include drooping of the mouth or eyelid, inability to smile or close the eye, altered taste, excessive tearing, or facial numbness. In some cases, speech and eating may be affected. The severity and duration vary depending on the underlying cause, with some cases resolving spontaneously while others require medical treatment. Prompt evaluation is essential, particularly to rule out stroke, and management may include medications, physical therapy, eye protection, or surgical intervention in certain cases.