Trigeminal neuralgia: symptoms, causes, treatment and doctors
What trigeminal neuralgia is, why the face pain is often mistaken for toothache, how MRI helps, and the medicines and procedures that relieve it.
Also known as: TN; Tic Douleureux; Tic douloureux
What trigeminal neuralgia is
Trigeminal neuralgia, sometimes called tic douloureux, is a condition that causes sudden, severe, stabbing or electric shock-like face pain. It affects the trigeminal nerve, which carries feeling from the face to the brain. The nerve has three branches on each side: one to the forehead and eye, one to the cheek, upper jaw and nose, and one to the lower jaw. Trigeminal neuralgia usually affects one side of the face, most often the cheek or jaw.
The pain is among the most intense that people describe, and the fear of the next attack can make eating, talking, brushing teeth and washing the face a daily ordeal. It is more common in people over fifty and in women, though it can occur at any age. It is not life-threatening, and treatment helps most people.
Symptoms
- Electric shock-like face pain, or sudden stabbing or shooting pain, lasting from a fraction of a second to a couple of minutes
- Jaw and cheek pain, or pain in the teeth, gums, lips, nose or around the eye, on one side
- Pain triggered by touch or by everyday actions: brushing teeth, chewing, talking, smiling, shaving, putting on make-up, or a breeze from a fan or open window
- Attacks that come in bursts, many times a day, followed by pain-free periods that can last weeks or months
- In some people, a constant dull ache or burning between the sharp attacks
Because the pain is often felt in the teeth or jaw, many people first go to a dentist. It is not unusual for healthy teeth to be treated or removed before the real cause is recognised. If dental treatment has not helped sharp, shock-like face pain, ask about trigeminal neuralgia.
Causes
In many people, a blood vessel near the base of the brain presses on the trigeminal nerve where it leaves the brainstem. Over time, this pressure wears away the protective coating (myelin) on the nerve, so it misfires and sends pain signals with very little trigger. In other cases, no clear cause is found.
Less often, trigeminal neuralgia is caused by multiple sclerosis, which damages myelin, or by a tumour or cyst pressing on the nerve. These are more likely when it starts at a younger age, affects both sides, or comes with numbness or other nerve problems. Face pain after shingles or a facial injury is a different condition, though it can feel similar.
How it is diagnosed
The diagnosis is based mainly on your description of the pain: where it is, what it feels like, how long it lasts and what sets it off. A neurological examination checks feeling in the face, the jaw muscles, the eyes and other nerves. In classic trigeminal neuralgia the examination is usually normal.
An MRI of the brain is usually advised to look for a blood vessel pressing on the nerve, and to rule out multiple sclerosis or a tumour. A dental check, and sometimes an ENT assessment, helps exclude tooth, sinus or jaw joint problems, which can also cause face pain. Sometimes a good response to medicine helps confirm the diagnosis.
Treatment
Ordinary painkillers usually do not help trigeminal neuralgia, because the pain comes from a misfiring nerve. Treatment is aimed at calming the nerve.
Medicines
Anticonvulsant medicines, the same family used for epilepsy, are the main treatment. Carbamazepine and related medicines are commonly used first. They work for many people, but they can cause drowsiness, dizziness, unsteadiness and, rarely, serious skin reactions or blood problems. Your doctor will start at a low dose, increase slowly, and may check blood tests. Some people of Asian descent, including some Indians, carry a gene variant that raises the risk of severe skin reactions with carbamazepine, and your doctor may test for it before starting. Report any rash immediately. Other medicines may be added or substituted. Do not stop suddenly without advice.
Procedures and surgery
If medicines stop working, or side effects are too much, a neurosurgeon may discuss procedures:
- Microvascular decompression — an operation behind the ear to move the blood vessel off the nerve and place a small cushion between them. It offers the longest-lasting relief for suitable patients, but it is major surgery under general anaesthesia.
- Needle procedures through the cheek, such as radiofrequency treatment, glycerol injection or balloon compression, which deliberately damage the nerve to stop pain signals. They are quicker and suit older or less fit patients, but often leave some facial numbness and the pain may return.
- Radiosurgery (for example Gamma Knife), which focuses radiation precisely on the nerve without an incision. Pain relief takes weeks to develop.
Each option has different benefits and risks. A neurologist and neurosurgeon together can help you choose.
Living with trigeminal neuralgia
- Keep a pain diary of attacks and triggers to share with your doctor
- Use lukewarm water, a soft toothbrush, and eat soft foods during a bad spell, but keep up dental care
- Shield the face from wind and avoid sitting directly under a fan or air conditioner
- Take medicines regularly, not only when pain strikes
- Ask for help if the pain is affecting your mood or eating; low mood and weight loss are common during bad periods
When to get urgent help
Trigeminal neuralgia itself is not an emergency, but call 112 or 108, or go to the nearest emergency department, if face pain or numbness comes with sudden weakness or drooping of the face, weakness of an arm or leg, slurred speech, loss of vision or a sudden severe headache. These can be signs of a stroke. Seek urgent care also if you develop a widespread rash, blistering or mouth sores after starting a new medicine, or cannot eat or drink because of pain.
Which doctor to see
A neurologist diagnoses trigeminal neuralgia and manages medicines. A neurosurgeon assesses whether surgery, a needle procedure or radiosurgery is suitable. A dentist can help rule out dental causes before any teeth are treated.
You can find neurologists in Bengaluru or neurosurgeons in Bengaluru on The Doctor Index, each with a registration you can check. If you also have one-sided headaches, read about migraine.
Common questions
Questions people ask
- Is trigeminal neuralgia a dental problem?
- No. It is a nerve problem, although the pain is often felt in the teeth or jaw. Many people have dental work that does not help. If sharp, shock-like face pain continues after dental treatment, see a neurologist before any more teeth are treated or removed.
- Will the pain go away on its own?
- Attacks often come and go, with pain-free periods of weeks or months, but the condition tends to return and may become more frequent over time. Medicines control it for many people, and procedures are available when medicines stop working.
- Is surgery for trigeminal neuralgia safe?
- All surgery carries some risk. Microvascular decompression gives long-lasting relief for many suitable patients but is a major operation. Needle procedures and radiosurgery are less invasive but may cause numbness. Your neurosurgeon will explain the risks for your situation.
- Can stress trigger trigeminal neuralgia?
- Stress does not cause trigeminal neuralgia, but some people notice attacks are harder to cope with when they are tired or stressed. The main triggers are light touch and everyday actions such as chewing, talking and brushing teeth.
This condition is usually assessed by a neurologist. Every profile shows the doctor’s registration and what has been checked.
Neurologists in Bangalore
A few neurologists listed on The Doctor Index. They are shown because of their speciality, not a stated interest in Trigeminal Neuralgia; ask the clinic whether the doctor sees it.
Related conditions
Practical reading
All postsSources
- MedlinePlus, US National Library of Medicine — Trigeminal Neuralgia
- Government of India — Emergency Response Support System (112)
- MedlinePlus, National Library of Medicine — Trigeminal Neuralgia — Public-domain health-topic summary
- Human Phenotype Ontology Consortium — terminology definitions — HPO licence; definitions reproduced without alteration
Trigeminal neuralgia: symptoms, causes, treatment and doctors is original text by The Doctor Index; the compiled source draft was used for research. Source: MedlinePlus, National Library of Medicine. Orphadata Science: Free access data from Orphanet. © INSERM 1999; July 2026 data, CC BY 4.0. This product uses the Human Phenotype Ontology (hp/releases/2026-09-01). Only sources listed for this article apply. Source material has been selected and arranged; HPO definitions are reproduced without alteration. No source organisation endorses this compilation. Köhler S et al. The Human Phenotype Ontology project: linking molecular biology and disease through phenotype data. Nucleic Acids Research 2014;42(D1):D966–D974. doi:10.1093/nar/gkt1026.
General information, not advice about your situation. Errors can be reported through the corrections process. Reference TDI-C-2354.