Have you ever experienced a throbbing headache after spending too much time staring at your phone or computer screen?Â
Now imagine that same aching pain, but it continues for several hours or days, progressively getting worse with bright lights and loud noises. This indescribable pain is more than just a bad headache – it’s a migraine.Â
A migraine is more than just a slightly worse headache. It’s a debilitating, chronic condition that can leave you bedridden and in pain for hours or even days on end.Â
So do you need an MRI for migraines? For most people the answer is no, and this article explains why, when imaging genuinely is warranted, and which scan is the right one.Â
Not Every Headache is a Migraine, But Every Migraine is a Headache
While many of us would describe the aching pulse in our temples as a headache, migraines are more common than you think.Â
Migraine is one of the most common neurological conditions in the country. National health survey data show about 1 in 5 women and 1 in 10 men report migraine or severe headache, with the highest rates between ages 18 and 44. Getting the right care is a genuine problem, and the gap is widest at the severe end: among people living with chronic migraine, one study found only 4.5 percent had completed all three steps of appropriate care, meaning seeing a clinician, receiving an accurate diagnosis, and being prescribed both acute and preventive treatment.
A migraine is a severe type of headache that can last anywhere from four hours to multiple days, interfering with your everyday life and affecting your ability to follow through on personal, social, and professional obligations.Â
While many use the terms “headache” and “migraine” interchangeably, headaches are only one symptom of migraines.Â
Along with headaches, migraines can be accompanied by the following symptoms:Â
- NauseaÂ
- Sensitivity to light, sounds, or smells
- DizzinessÂ
- FatigueÂ
- Mood changesÂ
- Difficulty concentratingÂ
- Vision changesÂ
- Trouble sleepingÂ
Symptoms of migraines will arrive at different intervals, or stages, of the condition. Moving through the four stages of a migraine – prodrome, aura, attack, and post-drome – can take anywhere from eight to 72 hours.Â
Is A Whole Body MRI for Migraine Headaches Necessary?Â
Migraines are unpredictable, and their exact causes are just as mysterious. Common triggers that can induce the start of a migraine may include hormonal shifts, allergies, genetics, or environmental factors such as stress or lack of sleep.Â
While most people with migraines don’t need an MRI, there are red flags that may indicate a larger problem at play inside your body.Â
Call 911 or go to the emergency room now if you have:
- A headache that comes on like a thunderclap, worst-ever pain peaking within seconds to a minute
- Weakness, numbness or drooping on one side of the body or face, trouble speaking, or sudden loss of vision
- Headache with fever, a stiff neck, or a new rash
- Confusion, drowsiness, a seizure, or any change in alertness
- A headache that starts after a blow to the head
Talk to your doctor promptly about these:
- Headaches becoming more frequent or more severe, or changing in character
- A brand-new type of headache starting after age 50, especially with scalp tenderness, jaw pain when chewing, or vision changes
- Headache that always stays on the same side
- A headache that keeps building over days or weeks, or will not let up despite treatment
- Headache triggered by coughing, sneezing, straining or lifting
- Headache that clearly changes when you lie down or stand up
- Vision loss, double vision or brief grey-outs of vision
- A painful red eye with tearing, a drooping eyelid, or a change in pupil size
- New or changed headache if you have or have had cancer, or if your immune system is suppressed
- Headache during pregnancy or in the weeks after giving birth
- Headaches that worsened after you started taking pain relievers more often, or after starting a new medication
Clinicians call these red flags. They do not mean something is wrong, and most of the time nothing is. They mean the headache deserves a doctor assessment rather than a wait-and-see.
Migraine Is a Diagnosis, Not a Warning Sign
You will sometimes read that migraines can be a sign of something serious. That gets it backwards. Migraine is a neurological condition in its own right, with its own defined diagnostic criteria. It is not a symptom of something else.
What is true is that a headache which resembles migraine, or a clear change in a pattern you have had for years, can occasionally be caused by a separate condition. Doctors call these secondary headaches. They include headaches caused by a brain tumour, a stroke or a tear in a neck artery, raised pressure inside the skull such as hydrocephalus, a leak of spinal fluid which typically causes a headache far worse standing up and better lying down, an infection such as meningitis or a brain abscess, and injury to the head or neck.
These are uncommon. Among people who meet the criteria for migraine and have a normal neurological examination, the odds of a scan turning up something significant are no higher than for anyone else. What raises the odds is not the migraine. It is the presence of one of the red flags above.
So Do You Need an MRI for Migraines?
For most people, no, and it is worth being straightforward about why.
Migraine is diagnosed from your history and a physical examination, not from a scan. There is no image that confirms it. The American Headache Society guidance is direct: people whose headaches meet migraine criteria, with a normal neurological exam, do not need neuroimaging at all. The research behind that found this group is no more likely to have a significant finding than anyone else. Scanning anyway mostly turns up incidental findings, harmless quirks of anatomy that lead to more tests and more worry.
When imaging is warranted, it is a specific test. If you have red-flag features, the right study is a dedicated brain MRI ordered by a doctor who has examined you, using sequences chosen for the question they are trying to answer. That is a different scan from a whole-body screening study. A whole-body MRI looks broadly across the body in someone with no symptoms. It is not designed to work up a headache, and we are not going to tell you otherwise.
If you have none of the red flags, the highest-value next step is not a scan. It is a headache diary and a clinician who treats headache. Most people with migraine are undertreated, not underscanned.
Where MRI Wellness Fits
Our whole-body screening scan is a real service with a real purpose: a broad structural look across 13 organ systems in someone who feels well and wants a baseline, with no ionizing radiation and no contrast dye. That is worth having on its own terms.
It is a separate conversation from your headaches. If your migraines have changed, start with your doctor. If you want a structural baseline while you are feeling well, schedule an appointment or talk to our team first and we will be honest about whether it is the right thing for you.
This article is for general education and is not medical advice. Talk with a qualified clinician about your own symptoms.
Frequently asked questions
Do I need an MRI for migraines?
For most people, no. Migraine is diagnosed from your history and a physical examination, and no image confirms it. American Headache Society guidance is explicit that people whose headaches meet migraine criteria, with a normal neurological exam, do not need neuroimaging. That group is no more likely to have a significant finding than anyone else, so scanning mostly turns up incidental findings that lead to further testing and worry.
When is a brain MRI warranted for headaches?
When red-flag features are present: a headache becoming more frequent or severe, a new type of headache after 50, one that always stays on the same side, pain triggered by coughing or straining, a headache that changes with posture, vision changes, or a new headache in someone with cancer or a suppressed immune system. In those situations the right study is a dedicated brain MRI ordered by a doctor who has examined you.
Can an MRI detect a migraine?
No. There is no MRI appearance of migraine and no imaging biomarker for it. Migraine is a clinical diagnosis made against established criteria from your symptom pattern and history. What imaging does is exclude other causes when something in the picture warrants it.
Can migraines be a sign of something more serious?
That framing is backwards. Migraine is a diagnosis in its own right, not a symptom of something else. What is true is that a headache resembling migraine, or a clear change in a long-standing pattern, can occasionally be caused by a separate condition such as a tumour, a stroke, raised pressure inside the skull, a spinal fluid leak, an infection, or a head injury. These are uncommon, and what raises the odds is the presence of a red flag rather than the migraine itself.
Is a whole-body MRI the right scan for headaches?
No. A whole-body screening scan is a broad structural survey designed for someone without symptoms who wants a baseline. It is not a headache workup. When imaging is indicated for headache, the appropriate study is a dedicated brain MRI with sequences chosen for the specific clinical question.
Sources
- Updated Guidelines for Neuroimaging in Migraine
- Red and orange flags for secondary headaches in clinical practice: SNNOOP10 list
- 1.1 Migraine without aura (ICHD-3 diagnostic criteria)
- From the Journal: The Prevalence of Migraine and Severe Headache
- Assessing Barriers to Chronic Migraine Consultation, Diagnosis, and Treatment: Results From the Chronic Migraine Epidemiology and Outcomes (CaMEO) Study
