Trigeminal neuralgia is inflammation of the trigeminal nerve, causing intense facial pain. It is also known as tic douloureax because the intense pain can cause patients to contort their face into a grimace and cause the head to move away from the pain. The obvious movement is known as a tic. Neuropathic pain is the cardinal sign of injury to the small unmyelinated and thinly myelinated primary afferent fibers that subserve nociception. The pain mechanisms themselves are altered. Microanatomic small and large fiber damage in the nerve, essentially demyelination, commonly observed at its root entry zone (REZ), leads to ephaptic transmission, in which action potentials jump from one fiber to another.A lack of inhibitory inputs from large myelinated nerve fibers plays a role. Additionally, a reentry mechanism causes an amplification of sensory inputs. Because most patients incur trigeminal neuralgia when older than 60 years, medical management is the logical initial therapy. Medical therapy is often sufficient and effective, allowing surgical consideration only if pharmacologic treatment fails. Medical therapy alone is adequate treatment for 75% of patients. Australia people around 910,621 among the total population are suffering from this disease that is 2.48% of the population effected.