Trigeminal Neuralgia is associated  with severe and sharp shock-like pain  in the head and face. Depending on which of the three parts of this trigeminal nerve are stimulated, this pain can be around the eyes and forehead, nose, jaw and  lips  . This pain is almost excruciating and one-sided. The trigeminal nerve is one of the twelve cranial nerves of the head. The nerve is responsible for sensation in the face and some motor functions in the mandibular branch of the nerve. The nerve is located on the right and left side of the head and finally divides into three branches:

eye branch (V1), maxillary branch (V2) and mandibular branch (V3). When a special part of this nerve called the Root Entry Zone, which is located about 5 to 15 mm from the exit point of the nerve from the brain stem, is pressed by a vessel, the trigeminal nerve is stimulated. This stimulation causes this pain. Due to the location of the pain in the face, patients usually confuse this pain with sinusitis or toothache and go to otolaryngology doctors or dentists and may undergo ineffective treatment for years. Fortunately, a special surgery called MVD cures 85% of these patients who do not improve with medication.