Asymmetry of the face is more common in nervous diseases and dental pathologies. Less commonly, the cause of the symptom is trauma, ophthalmological, otolaryngological, congenital diseases. Violation can be static or dynamic, develop due to disorders of innervation, edema, excess or lack of tissue. Determining the cause of asymmetry is carried out using data from general, dental, neurological, otolaryngological examination, radiography, and other imaging techniques. Treatment prior to diagnosis is not indicated.