Migraine vs Headache: What's the Difference?
"Headache" and "migraine" are often used interchangeably. But they're two distinct conditions with different causes, symptoms, and treatments. Understanding the difference isn't just about vocabulary: it's essential to know what's actually happening to you and when to seek medical help.
According to the World Health Organization, migraine affects around 14% of people globally (that's roughly 1 billion people worldwide). It's three times more common in women than in men, and most often affects adults between 30 and 40 years old.
In short
- A tension headache is usually felt on both sides of the head as steady pressure, with mild to moderate intensity and no nausea or sensitivity to light and sound.
- Migraine is a neurological disorder: pain is usually on one side, throbbing, moderate to severe, and often comes with nausea and sensitivity to light and sound, lasting 4 to 72 hours without treatment.
- According to the World Health Organization, migraine affects around 14% of people worldwide and is three times more common in women than in men.
- Telling the two apart matters because treatment differs, and noting each episode helps a doctor give a proper diagnosis.
Tension Headaches: The Common Headache
When most people say "I have a headache," they're usually describing a tension headache. It's the most common type of headache, affecting up to 70% of adults at some point in their lives, according to the WHO.
Characteristics of a Tension Headache
A tension headache typically presents with several recognizable signs:
- Diffuse, bilateral pain: you feel it on both sides of your head, often described as a tight band or pressure
- Mild to moderate intensity: uncomfortable but bearable, you can usually keep going with your day
- No associated symptoms: no nausea, no vomiting, no particular sensitivity to light or sound
- Steady, non-throbbing pain: it doesn't pulse with your heartbeat
Common Triggers
Tension headaches are usually linked to identifiable everyday factors:
- Stress and emotional tension
- Poor posture, especially at a desk or screen
- Lack of sleep
- Dehydration
- Muscle tension in the neck and shoulders
The good news: they generally respond well to over-the-counter pain relievers like acetaminophen (paracetamol) or ibuprofen, and often resolve once you address the underlying cause.
Worth noting: someone who has migraines can also experience tension headaches between attacks. The two conditions can coexist.
This is one reason it can feel so confusing. You might have a dull, tight-band headache on Tuesday and a throbbing, one-sided attack on Saturday, and both are "just a headache" in everyday language. Paying attention to how each one feels, rather than how bad it is, is what helps you tell them apart.
It also means that having a tension headache doesn't rule out migraine. If some of your headaches look very different from the others, mention that to your doctor, because it can change how they read your overall pattern.
Migraine: A Distinct Neurological Condition
Migraine is not just a bad headache. It's a chronic neurological disorder with a genetic basis, recognized as such by the World Health Organization.
The WHO ranks migraine as the third leading cause of disability-adjusted life years (DALYs) worldwide, after stroke and neonatal encephalopathy. It's the second most disabling neurological condition, and the most disabling for people aged 18 to 50.
Characteristics of a Migraine Attack
A migraine attack has very specific features, codified by the International Classification of Headache Disorders (ICHD-3):
- Unilateral pain: migraine usually affects one side of the head (the word comes from the Greek hemicrania, meaning "half a skull")
- Throbbing or pulsating pain: it feels like your heart is beating inside your head
- Moderate to severe intensity: the pain can be so strong that you can't function normally
- Associated symptoms: nausea, vomiting, sensitivity to light (photophobia), to sound (phonophobia), and sometimes to smells (osmophobia)
- Worsening with physical activity: climbing stairs, bending over, or any movement intensifies the pain
- Long duration: 4 to 72 hours without treatment
During an attack, many people can do nothing but lie in a dark, quiet room. This isn't about pain tolerance: it's the nature of the disease that makes activity impossible.
The Phases of a Migraine Attack
Unlike a regular headache, a migraine often unfolds in distinct phases that can stretch over nearly a week for a single attack:
- Prodrome: 24 to 48 hours before the attack, warning signs may appear (fatigue, irritability, food cravings, neck stiffness, mood changes). This is linked to hyperactivity in the hypothalamus, which can begin up to 72 hours before the pain.
- Aura: about 20 to 30% of people with migraine experience transient neurological symptoms before the pain. Lasting under 60 minutes, these can include visual disturbances (flashing lights, blind spots, zigzag lines), sensory changes (tingling), or speech and language difficulties.
- Headache phase: this is the migraine attack itself, lasting 4 to 72 hours.
- Postdrome: after the attack, a recovery period marked by intense fatigue, "brain fog," and lingering sensitivity that can last 24 to 48 hours.
Episodic vs Chronic Migraine
There are two main forms of migraine:
- Episodic migraine: fewer than 15 headache days per month. Affects roughly 12% of adults.
- Chronic migraine: at least 15 headache days per month for more than 3 months, with at least 8 days having migraine features. Affects about 1-2% of adults.
The shift from episodic to chronic is a real risk, often driven by overuse of pain medication. That's one reason why proper medical follow-up matters.
How to Tell What You Have
Distinguishing a tension headache from a migraine is done through clinical assessment, based on symptom characteristics. Here are the key questions to ask yourself:
| Tension Headache | Migraine | |
|---|---|---|
| Location | Both sides, band-like | Usually one side |
| Pain quality | Steady, non-throbbing | Throbbing, pulsating |
| Intensity | Mild to moderate | Moderate to severe |
| Duration | 30 min to several hours | 4 to 72 hours |
| Nausea / vomiting | No | Yes, often |
| Light / sound sensitivity | No | Yes |
| Worse with activity | No | Yes |
| Can you function? | Yes, despite discomfort | Often no |
If you check several boxes in the "migraine" column, there's a good chance that's what you're experiencing. But only a healthcare provider can give you a formal diagnosis.
A table is a starting point, not a verdict. Real attacks don't always follow the textbook: some migraines are felt on both sides, and some are milder than expected. That's why it helps to look at several attacks over time instead of judging a single one.
A simple habit can make that easier. After each episode, note where it hurt, what the pain felt like, whether you felt sick or bothered by light and sound, and how long it lasted. Bringing these notes to your appointment gives your doctor much more to work with than a memory of "a bad headache a few weeks ago."
Why It Matters to Know the Difference
Mistaking a migraine for an ordinary headache has real consequences:
Wrong treatment. Acetaminophen and ibuprofen, the most common over-the-counter painkillers, are far less effective on migraine than triptans or specific NSAIDs prescribed for migraine attacks.
Delayed diagnosis. Studies show that fewer than 50% of people with migraine receive a proper diagnosis. Many self-treat for years before seeing a doctor.
Risk of chronification. Overuse of common painkillers can transform episodic migraine into a chronic daily headache through medication-overuse headache. A condition within a condition.
Daily invalidation. Migraine is an invisible illness, often minimized by family, friends, and even healthcare providers. Putting the right words on what you're experiencing is the first step toward having your reality acknowledged.
When to See a Doctor
You should consult a healthcare provider if:
- Your headaches are recurrent (multiple times a month)
- They're accompanied by nausea, vomiting, or visual disturbances
- They prevent you from working or doing daily activities
- You're taking pain medication more than 10 days per month
- The pattern or frequency of your headaches changes suddenly
Some warning signs warrant emergency care: a sudden, severe "thunderclap" headache, a headache with fever or stiff neck, persistent neurological symptoms, or a headache after head trauma. These could indicate a secondary cause that needs immediate evaluation.
Understanding Your Migraines Is the First Step
The first step toward living better with migraine is understanding what's happening and identifying your personal triggers. Stress, sleep, food, hormones, weather: every person with migraine has a unique pattern. Keeping a migraine journal helps reveal patterns invisible to the naked eye.
That's exactly what Mellow is built to help you do: log your migraines in seconds, track what triggers them, and slowly take back control.
Frequently asked questions
Is a migraine just a bad headache?
No. Migraine is a chronic neurological disorder, recognized as such by the World Health Organization. It comes with features a tension headache doesn't have, such as throbbing one-sided pain, nausea and sensitivity to light and sound.
How long does a migraine attack last?
Without treatment, the headache phase of a migraine lasts 4 to 72 hours. A tension headache usually lasts from 30 minutes to several hours.
Can you have both tension headaches and migraines?
Yes. Someone who has migraines can also get tension headaches between attacks, and the two conditions can coexist. If some of your headaches look very different from others, mention it to your doctor.
Can I tell the difference between a migraine and a headache on my own?
Symptoms like pain location, pain quality, nausea and sensitivity to light give useful clues. Only a healthcare provider can give a formal diagnosis, and notes on several episodes help them a lot.
When should I see a doctor for my headaches?
Consult a healthcare provider if your headaches are recurrent, come with nausea, vomiting or visual disturbances, or get in the way of daily life. Also see one if you take pain medication more than 10 days per month. A sudden, severe "thunderclap" headache needs emergency care.
Sources
- World Health Organization: Headache disorders fact sheet (2024). Available at who.int
- Mayo Clinic: Migraine: Symptoms and causes. Available at mayoclinic.org
- NHS: Migraine overview. Available at nhs.uk
- National Institute of Neurological Disorders and Stroke (NINDS): Migraine information. Available at ninds.nih.gov
- Lancet Neurology: Global, regional, and national burden of disorders affecting the nervous system, 1990-2021 (2024)
- International Classification of Headache Disorders (ICHD-3): International Headache Society, 2018
Written by Laurine Nicoletti, founder of Mellow, who has lived with migraine since she was 21. Learn more · How we write our articles
Related articles
Why Do I Have a Headache Every Day?
Having a headache every day isn't normal. Chronic tension-type headache, medication overuse, transformed migraine: the real causes and what to do.
When to Go to the ER for a Migraine (and When You Can Wait)
Wondering when to go to the ER for a migraine? Learn the calm, clear warning signs that need urgent care, and when a bad headache can often wait.
Is Migraine Hereditary? What Genetics Really Says
Is migraine hereditary? Yes, genes play a role, but there is no single migraine gene. See what studies say and what it means for your children.
