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What Is Migraine?
A migraine is a recurring, pulsing headache caused by swollen blood vessels in your head. In addition to headache pain, migraine may cause symptoms such as nausea, vomiting, mood changes, and sensitivity to light, noise, or smell. Symptoms may last hours or days, making it difficult to keep up with your everyday activities.
What are the types of migraine?
Types of migraine include:
- Episodic migraine — These happen 15 days a month or less.
- Chronic migraine — These occur more than 15 days a month for three months. They affect about four million Americans.
Other categories of migraine include:
Migraine with aura
Some migraines have auras, which are sensory disturbances that happen with headache pain. Auras affect 1 in 5 people and are more common in men. Aura symptoms often start 10-30 minutes before a migraine.
Common migraine
A migraine without aura, also called a common migraine, doesn't cause sensory changes.
Menstrual migraine
Menstrual migraines happen right before, during, or after a person's period starts and may be caused by changes in hormone levels.
What causes migraine?
It's unclear what causes migraine. Researchers think it may be due to changes in nerve pathways and chemicals that cause the blood vessels in the brain to swell. This swelling presses on nerves, causing pain.
Migraines also tend to run it families. Researchers believe this may be due to faulty genes that control certain brain cell functions.
What are migraine triggers?
Migraine triggers refer to things that may start a migraine attack. Triggers vary from person to person and may include:
- Alcohol.
- Anxiety.
- Bright lights.
- Caffeine.
- Hormone changes.
- Loud noises.
- Medicine.
- Not enough or too much sleep.
- Skipping meals.
- Stress.
- Strong odors, such as perfume.
- Tobacco.
- Weather changes.
Migraines can also be triggered by certain foods, including:
- Chocolate.
- Dairy, such as certain aged cheeses.
- Fermented or pickled foods.
- Foods containing monosodium glutamate (MSG).
- Meats with high levels of nitrates, such as bacon, hot dogs, and cured meats.
- Nuts and seeds.
- Onions.
- Processed foods.
- Red wine.
What are migraine risk factors and complications?
Migraine risk factors
Migraine tends to run in families, so you may be at higher risk if you have a biological parent or another relative with migraine. Other risk factors for migraine include:
- Anxiety.
- Being a woman.
- Depression.
- High stress levels.
- Obesity.
- Smoking.
Complications of migraine
Migraines are not life-threatening, but the pain can make it difficult to work, go to school, or manage other everyday activities.
Migraine also increases your risk of stroke. Your risk of stroke may be even higher if you smoke, take birth control pills, have high blood pressure or high cholesterol, or have migraine with aura.
How can I prevent migraine?
You may not be able to completely prevent migraine attacks, but your doctor may recommend lifestyle changes that help reduce the frequency and intensity of your migraine symptoms.
Lifestyle changes that help prevent migraine attacks may include:
- Avoiding tobacco products.
- Being active.
- Deep breathing.
- Drinking lots of water.
- Eating healthy meals and snacks.
- Keeping a set sleep schedule.
- Limiting stress.
- Not skipping meals.
- Reducing your sugar, alcohol, and caffeine intake.
Supplements can sometimes help with migraine symptoms, such as:
- Coenzyme Q10.
- Magnesium.
- Riboflavin.
- Vitamin D.
How common is migraine?
According to the American Migraine Foundation, migraine is the third most common disease in the world, affecting 1 out of 7 people globally. Migraine affects more than 37 million people in the U.S.
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What Are the Signs and Symptoms of Migraine?
Migraine symptoms includepain in your temples, ears, eye, or any part of your head. The pain is typically throbbing or pulsing and can be severe. It can be on one or both sides of your head.
Other migraine symptoms may include:
- A runny or stuffed nose.
- Feeling mentally foggy.
- Nausea and vomiting.
- Numb or tingling face or hands.
- Sensitivity to light, noise, and smell.
- Sinus pressure.
- Visual (auras) of zigzag or flashing lights before migraine.
When should I see a doctor about my migraine symptoms?
If you have symptoms of migraine, you should schedule an appointment with your doctor. Getting treatment can help you feel better sooner, improve your quality of life, and reduce the need for you to seek emergency care when migraine headaches happen.
If you have already been diagnosed with migraine, you should contact your doctor if:
- You are taking OTC pain medications more than three days per week.
- You become pregnant or are planning to become pregnant.
- Your headaches get more severe when you lay down.
- Your headache symptoms or pain level changes.
- Your medication causes side effects.
- Your treatment is no longer working.
Sometimes, a more serious condition, such as a stroke or another brain disorder, can be mistaken for migraine. You should dial 911 if:
- You have a fever or stiff neck.
- You have changes in your ability to speak or understand speech.
- You have changes in your hearing, vision, balance, or ability to move.
- Your headache causes repeated vomiting.
- Your headache is extremely severe and comes on suddenly.
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How Do You Diagnose Migraine?
Your doctor will review your health history, ask about your symptoms, and do a physical exam.
What to expect during your visit
When you arrive at your appointment, your doctor will:
- Ask you about your symptoms.
- Perform a physical exam.
- Order imaging or other tests, if needed, to rule out other causes of your headaches.
- Review your health history and medications.
Tests to diagnose migraine
There are no tests doctors can use to diagnose migraine. You may need imaging scans like a CT or MRI to rule out other causes of your headaches.
Migraine prognosis
With treatment, most people can manage migraine and reduce its impact on quality of life.
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How Do You Treat Migraine?
The goal of migraine treatment is to reduce pain, improve your quality of life, and prevent future headaches. You may need a combination of treatments to manage your migraine, including:
Pain relief and anti-nausea drugs
For migraine symptom relief, your doctor may suggest pain relievers and anti-nausea drugs. The first step may be taking over-the-counter drugs. The prescription-strength versions of these same medicines may help if those don't work.
Medications may include:
- Nonsteroidal anti-inflammatory drugs.
- Medicine that mixes pain relievers with caffeine.
If those don't help, your doctor may suggest migraine medications.
Triptans to treat migraine
Triptans are a type of medicine called a serotonin agonist. These drugs balance chemicals in your brain and block pain pathways. They may leave you feeling flushed and warm, with chest tightness and a rapid heartbeat.
You can take triptans as a tablet, nasal spray, or shot. They're not for people who smoke or have heart issues.
Sumatriptan shots to treat migraine
Sumatriptan is a common triptan. It narrows blood vessels to reduce headache pain.
When a migraine attack starts, you use a pre-filled medicine pen to give yourself a shot. You also may be able to get sumatriptan shots at your doctor’s office.
Sumatriptan shots start working in five minutes. They may make you drowsy or dizzy, and it's not for people with heart disease, high blood pressure, liver, or kidney problems.
Nerve block shots to treat migraine
Nerve block shots are a long-lasting way to stop nerve pain signals. To treat headaches, nerve blocks target the seven main branches of the pericranial nerves in your scalp.
Nerve block shots are quick, safe, and minimally invasive. During a nerve block shot, your doctor will:
- Inject a numbing solution such as lidocaine or bupivacaine so the shots don't hurt.
- Wait until the treatment area is numb before injecting the nerve block solution.
- Add corticosteroids, an anti-inflammatory drug, to the shot if they feel you need it.
In most cases, you'll have shots every three months.
Possible side effects include:
- An allergic reaction.
- Bleeding.
- Infection.
- Short-term numbness.
Trigger point shots for migraine
Trigger point shots can treat cluster headaches, migraines, and sometimes tension headaches. They reduce muscle pain.
When you get the shots, your doctor will:
- Tailor the dose and placement to your migraine pain.
- Inject a numbing solution so the trigger point shots don't hurt.
- Give you the trigger point shot. The shots contain a solution to numb the pain and may include a steroid, much like a nerve block.
Often, your doctor may use the same solution and do both nerve block and trigger point shots in one visit. This can relieve pain from your nerves and muscles in one treatment.
BOTOX® shots for chronic migraines
Botox shots can prevent chronic migraine attacks. Botox blocks the pain messages in the nerves coming from the muscles, turning off migraine pain.
Your doctor gives you a series of shots in your scalp every three months.
The risks are bleeding, bruising, or infection. Side effects may include neck pain and eyelid droop.
Calcitonin gene-related peptide (CGRP) receptor antagonists for migraines
CGRP receptor antagonists (gepants) are a newer class of migraine drugs. Doctors often use them to treat people who can't take triptans or when triptans haven't worked.
CGRP is a compound in the brain that causes inflammation. The medicine blocks inflammation caused by CGRP, reducing pain.
Gepants come in pill form or as a nasal spray. You take this drug when a migraine attack starts to reduce your symptoms. Side effects are nausea and constipation.
Some of these drugs also help to prevent migraines. In this case, you take the drug every day.
CGRP monoclonal antibodies for migraine
Monoclonal antibodies block CGRP or the CGRP receptor. They stop this compound from sending inflammation signals.
These antibodies are available as a self-injection pen. They do not work as quickly as acute migraine treatments but can help prevent migraines.
Some of these antibodies are available as a monthly shot. Others require a visit every three months for an infusion in the clinic.
Other medicines to treat or prevent migraine
Your doctor may suggest other medicines to prevent migraine attacks. Some prescription drugs for other health issues can help treat or prevent migraines.
These include:
- Antidepressants.
- Antiseizure drugs.
- Blood pressure medicine.
What happens if you don’t treat migraines?
Migraines themselves are not life-threatening. However, not treating migraines can affect your quality of life and prevent you from working, going to school, or managing daily responsibilities.
How do you recover from a migraine?
After a migraine, it’s important to avoid triggers or other things that make symptoms worse. It can take a few days to feel normal after a migraine attack, but staying hydrated, reducing stress, and getting extra rest can help.
Some people feel better after light activity, such as stretching or walking. However, be careful not to do too much too soon. If symptoms return or worsen, rest until you start to feel better again.
Why choose UPMC for migraine care?
When you choose UPMC for migraine care, you will receive:
- Access to world-class neurology expertise — Our world-renowned experts use advanced techniques to treat the full spectrum of neurological conditions, including all types of headaches.
- A full range of treatment options — Our headache medicine experts use the latest evidence-based therapies to effectively treat all types of headaches while reducing your risk of side effects.
- Multidisciplinary care — Our headache medicine experts partner with primary care providers, registered dietitians, mental health clinicians, and other medical experts to provide complete care that optimizes your recovery and quality of life.
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By UPMC Editorial Staff. Last reviewed on 2025-05-05.