Learn about this painful nerve condition that can jolt areas on the face with electric-shock-like pain.
Trigeminal neuralgia is a condition that causes painful sensations similar to an electric shock on one side of the face. This chronic pain condition affects the trigeminal nerve, which carries sensation from your face to your brain. If you have trigeminal neuralgia, even mild stimulation of your face — such as from brushing your teeth or putting on makeup — may trigger a jolt of excruciating pain.
You may initially experience short, mild attacks. But trigeminal neuralgia can progress and cause longer, more-frequent bouts of searing pain. Trigeminal neuralgia affects women more often than men, and it's more likely to occur in people who are older than 50.
Because of the variety of treatment options available, having trigeminal neuralgia doesn't necessarily mean that you're doomed to a life of pain. Doctors usually can effectively manage trigeminal neuralgia with medications, injections or surgery.
Trigeminal neuralgia symptoms may include one or more of these patterns:
If you experience facial pain, particularly prolonged or recurring pain, or pain unrelieved by over-the-counter pain relievers, see your doctor.
Trigeminal neuralgia results in pain occurring in an area of the face supplied by one or more of the three branches of the trigeminal nerve.
In trigeminal neuralgia, also called tic douloureux, the trigeminal nerve's function is disrupted. Usually, the problem is contact between a normal blood vessel — in this case, an artery or a vein — and the trigeminal nerve at the base of your brain. This contact puts pressure on the nerve and causes it to malfunction.
While compression by a blood vessel is one of the more common causes of trigeminal neuralgia, there are many other potential causes as well. Some may be related to multiple sclerosis or a similar disorder that damages the myelin sheath protecting certain nerves. Trigeminal neuralgia can also be caused by a tumor compressing the trigeminal nerve.
Some people may experience trigeminal neuralgia due to a brain lesion or other abnormalities. In other cases, surgical injuries, stroke or facial trauma may be responsible for trigeminal neuralgia.
A variety of triggers may set off the pain of trigeminal neuralgia, including:
Trigeminal neuralgia is caused by a disruption in the trigeminal nerve's function.
Your doctor will diagnose trigeminal neuralgia mainly based on your description of the pain, including:
Your doctor may conduct many tests to diagnose trigeminal neuralgia and determine underlying causes for your condition, including:
Your facial pain may be caused by many different conditions, so an accurate diagnosis is important. Your doctor may order additional tests to rule out other conditions.
Trigeminal neuralgia treatment usually starts with medications, and some people don't need any additional treatment. However, over time, some people with the condition may stop responding to medications, or they may experience unpleasant side effects. For those people, injections or surgery provide other trigeminal neuralgia treatment options.
If your condition is due to another cause, such as multiple sclerosis, your doctor will treat the underlying condition.
To treat trigeminal neuralgia, your doctor usually will prescribe medications to lessen or block the pain signals sent to your brain.
Anticonvulsants. Doctors usually prescribe carbamazepine (Tegretol, Carbatrol, others) for trigeminal neuralgia, and it's been shown to be effective in treating the condition. Other anticonvulsant drugs that may be used to treat trigeminal neuralgia include oxcarbazepine (Trileptal, Oxtellar XR), lamotrigine (Lamictal), valproate and phenytoin (Dilantin, Phenytek, Cerebyx). Other drugs, including clonazepam (Klonopin), topiramate (Qsymia, Topamax, others), pregabalin (Lyrica) and gabapentin (Neurontin, Gralise, Horizant), also may be used.
If the anticonvulsant you're using begins to lose effectiveness, your doctor may increase the dose or switch to another type. Side effects of anticonvulsants may include dizziness, confusion, drowsiness and nausea. Also, carbamazepine can trigger a serious drug reaction in some people, mainly those of Asian descent, so genetic testing may be recommended before you start carbamazepine.
Surgical options for trigeminal neuralgia include:
Microvascular decompression. This procedure involves relocating or removing blood vessels that are in contact with the trigeminal root to stop the nerve from malfunctioning. During microvascular decompression, your doctor makes an incision behind the ear on the side of your pain. Then, through a small hole in your skull, your surgeon moves any arteries that are in contact with the trigeminal nerve away from the nerve, and places a soft cushion between the nerve and the arteries.
If a vein is compressing the nerve, your surgeon may remove it. Doctors may also cut part of the trigeminal nerve (neurectomy) during this procedure if arteries aren't pressing on the nerve.
Microvascular decompression can successfully eliminate or reduce pain for many years, but pain can recur by 10 years in three out of 10 people. Microvascular decompression has some risks, including decreased hearing, facial weakness, facial numbness, a stroke or other complications. Most people who have this procedure have no facial numbness afterward.
Brain stereotactic radiosurgery (Gamma knife). In this procedure, a surgeon directs a focused dose of radiation to the root of your trigeminal nerve. This procedure uses radiation to damage the trigeminal nerve and reduce or eliminate pain. Relief occurs gradually and may take up to a month.
Brain stereotactic radiosurgery is successful in eliminating pain for the majority of people. However, like all procedures, there is a risk of recurrence, often within 3 to 5 years. If pain recurs, the procedure can be repeated or an alternative procedure can be performed. Facial numbness is a common side effect, and may occur months or years after the procedure.
Other procedures may be used to treat trigeminal neuralgia, such as a rhizotomy. In a rhizotomy, your surgeon destroys nerve fibers to reduce pain, and this causes some facial numbness. Types of rhizotomy include:
Glycerol injection. During this procedure, your doctor inserts a needle through your face and into an opening in the base of your skull. Your doctor guides the needle into the trigeminal cistern, a small sac of spinal fluid that surrounds the trigeminal nerve ganglion — where the trigeminal nerve divides into three branches — and part of its root. Then, your doctor will inject a small amount of sterile glycerol, which damages the trigeminal nerve and blocks pain signals.
This procedure often relieves pain. However, some people have a later recurrence of pain, and many experience facial numbness or tingling.
Balloon compression. In balloon compression, your doctor inserts a hollow needle through your face and guides it to a part of your trigeminal nerve that goes through the base of your skull. Then, your doctor threads a thin, flexible tube (catheter) with a balloon on the end through the needle. Your doctor inflates the balloon with enough pressure to damage the trigeminal nerve and block pain signals.
Balloon compression successfully controls pain in most people, at least for a period of time. Most people undergoing this procedure experience at least some temporary facial numbness.
Radiofrequency thermal lesioning. This procedure selectively destroys nerve fibers associated with pain. While you're sedated, your surgeon inserts a hollow needle through your face and guides it to a part of the trigeminal nerve that goes through an opening at the base of your skull.
Once the needle is positioned, your surgeon will briefly wake you from sedation. Your surgeon inserts an electrode through the needle and sends a mild electrical current through the tip of the electrode. You'll be asked to indicate when and where you feel tingling.
When your neurosurgeon locates the part of the nerve involved in your pain, you're returned to sedation. Then the electrode is heated until it damages the nerve fibers, creating an area of injury (lesion). If your pain isn't eliminated, your doctor may create additional lesions.
Radiofrequency thermal lesioning usually results in some temporary facial numbness after the procedure. Pain may return after three to four years.
Alternative treatments for trigeminal neuralgia generally haven't been as well studied as medications or surgical procedures, so there's often little evidence to support their use.
However, some people have found improvement with treatments such as acupuncture, biofeedback, chiropractic, and vitamin or nutritional therapy. Be sure to check with your doctor before trying an alternative treatment because it may interact with your other treatments.
Living with trigeminal neuralgia can be difficult. The disorder may affect your interaction with friends and family, your productivity at work, and the overall quality of your life.
You may find encouragement and understanding in a support group. Group members often know about the latest treatments and tend to share their own experiences. If you're interested, your doctor may be able to recommend a group in your area.
Make an appointment with your primary care provider if you have symptoms common to trigeminal neuralgia. After your initial appointment, you may see a doctor trained in the diagnosis and treatment of brain and nervous system conditions (neurologist).
For possible trigeminal neuralgia, some basic questions to ask your doctor include:
In addition to the questions that you've prepared to ask your doctor, don't hesitate to ask questions during your appointment at any time that you don't understand something.
Your doctor is likely to ask you a number of questions. Being ready to answer them may give you more time to go over points you want to discuss further. Your doctor may ask: