Although facial palsy and stroke have clinical similarities, they are two very different diseases. The difference between them is as follows: 1. Etiology: facial palsy is paralysis of the facial muscles innervated by inflammation of the facial nerve, which is usually caused by viral infection or non-specific inflammation caused by vascular diastolic and contractile dysfunction; whereas stroke is an acute cerebrovascular disease, which is a group of diseases caused by sudden rupture of blood vessels in the brain or obstruction of blood vessels, resulting in brain tissue damage. Symptoms: If the right side of facial palsy, the right frontal line becomes shallow or disappears, the right nasolabial fold becomes shallow, the corner of the mouth is skewed to the left side, some of them are accompanied by pain behind the right ear and herpes zoster in the auricle; in terms of symptoms, although facial palsy can also occur in stroke, the biggest difference is that there is almost no change in the frontal line of the face in stroke, and often there is also In terms of symptoms, although facial palsy can also occur in strokes, the major difference is that facial palsy is almost never accompanied by changes in the forehead lines of the face, and is often accompanied by paralysis and numbness of the lateral limbs, unfavorable language, incontinence and other symptoms; 3.