The nervous system consists of the central nervous system, which consists of the bran and spinal cord, and the peripheral nervous system, which consists of nerves that connect the brain and spinal cord to all parts of the body. The seventh cranial nerve, nervus facialis, is the motor nerve of the facial muscles. It contains motor, sensory and parasympathetic fibers, so its disturbance leads to weakness of the mimic muscles. The lesion can be peripheral or central. Peripheral paralysis, also called Bell's palsy, is the most common cause of the unilateral facial paralysis. Facial palsy can occour at any age, but is somewhat more common in people aged 20 to 50. Its etiology is unsolved, but patients often report that before the paralysis they were exposed to a draft next to an open window in a car or train. With the help of a physiotherapy assessment, the presence of facial palsy can be diagnosed and what type of paresis it is. The most common tests used are the House-Brackmann scale and the Sunnybrook scale, and test such as the corneal test and the Schirmer test are also used. Therapy can be a combination of medication therapy and physical therapy. Corticosteroid drugs are generally considered the first line of treatment for facial palsy, initially given in high doses and then gradually reduced. They help to reduce facial nerve edema. They give the best results when treatment begins within 72 hours of the onset of symptoms. Physiotherapy procedures consists of a number of techniques and procedures such as: electrostimulation, galvanization, laser theraphy, biofeedback, therapeutic exercises, acupuncture, massage etc... Dysfunction of the facial nerve can seriously affect the quality of the patient's daily life because the face is the centar of communication and expression, and facial hemiparesis results in functionl and cosmetic damage.