Unilateral facial pain can be associated with various conditions such as migraine, tension-type headache, or temporomandibular joint disorders. The diagnosis of trigeminal neuralgia is differentiated from other causes of facial and head pain by a specialist physician carefully evaluating the patient's complaints and clinical findings. The diagnosis can be confirmed with specialized MRI imaging techniques focused on the trigeminal nerve. These advanced imaging studies clearly show vascular structures pressing on the trigeminal nerve, aiding in the diagnosis.