Migraine is not simply a bad headache. A typical tension-type headache produces a dull, pressing ache on both sides of the head that you can usually push through; a migraine tends to land on one side, throb or pulse, hit harder, and come bundled with nausea, sensitivity to light and sound, and sometimes visual disturbances that have no equivalent in ordinary headaches. The distinction matters because the two conditions arise from different processes in the brain, respond to different treatments, and carry different long-term health implications.
How the Two Conditions Actually Feel
The international diagnostic criteria doctors use draw sharp lines between tension-type headache and migraine based on a handful of features. A tension-type headache is bilateral (felt on both sides), pressing or tightening rather than pulsating, mild to moderate in intensity, and not made worse by routine physical activity like walking up stairs. It also lacks nausea, vomiting, and the combination of both light and sound sensitivity.
Migraine, by contrast, checks a different set of boxes: unilateral location, pulsating quality, moderate or severe intensity, and pain that worsens with ordinary movement. During a migraine attack, you also experience at least nausea or vomiting, or both light sensitivity and sound sensitivity together.1PubMed Central. Debate: differences and similarities between tension-type headache and migraine Not every migraine ticks every box every time, but the overall pattern is unmistakable once you know what to look for: tension-type headache feels like a band squeezing your skull, whereas migraine feels like something pounding inside it.
Duration differs too. A tension headache can last anywhere from thirty minutes to a full week, but the pain usually sits at a manageable level throughout. A migraine attack, when untreated, typically lasts four to seventy-two hours and is often disabling enough to force you into a dark, quiet room.1PubMed Central. Debate: differences and similarities between tension-type headache and migraine
Migraine Unfolds in Stages
One feature that sets migraine apart is that the headache itself is only part of the event. Researchers describe migraine as having up to four clinical stages: a prodrome, an aura (in some people), the headache phase, and a postdrome.2PubMed Central. The prodrome of migraine: mechanistic insights and emerging therapeutic strategies The prodrome can show up hours or even a day before the pain starts, bringing yawning, food cravings, mood shifts, neck stiffness, or trouble concentrating. People who learn to recognize these warning signs sometimes get a head start on treatment.
After the headache resolves, the postdrome phase can leave you feeling washed out, foggy, or unusually tired for another day or so. Tension-type headaches don’t follow this staged pattern; the pain comes, stays relatively steady, and then fades. If you notice a predictable sequence of odd symptoms before and after your headaches, that pattern alone strongly suggests migraine rather than a simple tension headache.
Aura and What It Means
About a quarter to a third of people with migraine experience aura, a set of fully reversible neurological symptoms that typically precede the headache by five to sixty minutes. Visual aura is the most common form: you might see shimmering zigzag lines, blind spots, or flickering lights that slowly expand across your visual field. Some people instead get tingling that creeps from the hand up the arm, or temporary difficulty finding words.
The underlying event is called cortical spreading depression, a slow wave of intense nerve-cell firing that sweeps across the surface of the brain, followed immediately by a period of suppressed activity.3PubMed. Cortical spreading depression and migraine Functional MRI studies have captured this wave in real time in people experiencing visual aura, showing changes in blood oxygen levels that track closely with the spreading depression and match what the person perceives.4PubMed. Mechanisms of migraine aura revealed by functional MRI in human visual cortex In rare cases, prolonged cortical spreading depression has been linked to migrainous infarction, a stroke-like event.5PubMed Central. Migrainous Infarction and Cortical Spreading Depression Tension-type headaches do not involve aura. If you’ve ever experienced visual disturbances before a headache, you’ve almost certainly had a migraine.
Different Engines Under the Hood
The mechanisms driving these two headache types overlap in some ways but diverge in important ones. In migraine, a key player is the trigeminovascular system, a network of nerve fibers surrounding the blood vessels of the brain’s protective membranes. When this system activates, nerve endings release a signaling molecule called CGRP, which triggers a cascade of events including widening of blood vessels, local inflammation around the meninges, and sensitization of the pain-transmitting nerves themselves.6PubMed Central. CGRP and the Trigeminal System in Migraine This sensitization means the nerves become increasingly reactive, amplifying pain signals and contributing to the throbbing, movement-worsened quality of migraine pain. The trigeminovascular system is now widely accepted as playing a fundamental role in migraine, and blocking CGRP has become one of the most successful therapeutic strategies.7PubMed Central. Migraine and the trigeminovascular system-40 years and counting
Brain imaging has also shown that the hypothalamus, a small region deep in the brain that regulates sleep, appetite, and hormonal cycles, becomes active even before a migraine headache begins and stays active during the attack, even after the pain has been treated with medication.8PubMed. Hypothalamic activation in spontaneous migraine attacks Changes in hypothalamic connectivity appear in the period just before a migraine starts, which helps explain why prodrome symptoms like yawning, cravings, and mood changes occur hours before the headache itself.9PubMed Central. Hypothalamic regulation of headache and migraine
Tension-type headache, especially in its chronic form, appears to be driven more by sensitization at a different level. The most consistent physical finding in people with tension-type headache is increased tenderness in the muscles around the skull and neck. Over time, persistent pain signals from these muscles can sensitize the central pain-processing pathways, making the brain overreact to stimuli that shouldn’t normally hurt.10PubMed. Central sensitization in tension-type headache–possible pathophysiological mechanisms Trigger points in the muscles of the neck, head, and shoulders have been proposed as primary drivers that set this central sensitization in motion.11PubMed. Myofascial trigger points and sensitization: an updated pain model for tension-type headache
A population-based study found a graded relationship between how frequently someone has headaches and how sensitive their pain system becomes, with chronic tension-type headache showing the greatest sensitization, followed by frequent episodic tension-type headache, then migraine, then headache-free individuals.12PubMed. Frequency of headache is related to sensitization: a population study So while both conditions involve the central nervous system ramping up its pain responses, they get there by somewhat different routes: migraine through the trigeminovascular system and deep brain structures, tension-type headache primarily through peripheral muscle input feeding into spinal and brainstem sensitization.
Genetics and Why Migraine Runs in Families
If your parent has migraine, your odds of having it are substantially higher than average, and this genetic component is one of the clearest ways migraine distinguishes itself from ordinary headaches. Rare inherited subtypes, such as familial hemiplegic migraine, have been traced to mutations in specific genes involved in how ions and neurotransmitters move at nerve junctions.13PubMed Central. Exploring the Hereditary Nature of Migraine These mutations essentially make neurons too excitable, lowering the threshold for the kind of brain-wave disruptions that can trigger a migraine attack.
Most migraine, though, is polygenic: many genetic variants, each contributing a small increase in risk, add up to create susceptibility. Large-scale genetic studies have now identified more than 180 such variants, pointing to pathways involved in both nerve function and blood-vessel regulation.14PubMed Central. Genetics of migraine: where are we now? The picture that emerges is one of a brain wired to be particularly sensitive to changes in its internal environment. Tension-type headache, by contrast, has a much weaker and less well-characterized genetic signature. If headaches run strongly in your family and come with the classic migraine features, genetics is a big part of the story.
Why Hormones Matter
Migraine is roughly three times more common in women than men after puberty, and hormonal fluctuations are a major reason. The estrogen withdrawal hypothesis, supported by decades of evidence, holds that the sharp drop in estrogen levels just before menstruation serves as a trigger for migraine attacks.15PubMed Central. Menstrual migraine is caused by estrogen withdrawal: revisiting the evidence Higher estrogen levels, on the other hand, seem to be protective.16Nature Reviews Neurology. Hormonal influences in migraine — interactions of oestrogen, oxytocin and CGRP
This hormonal link explains why many women find their migraines worsen around their period, sometimes improve during pregnancy (when estrogen stays consistently high), and can shift again around menopause. It also explains the sex-ratio change across the lifespan: before puberty, boys and girls get migraine at about the same rate, but in adolescence the ratio shifts to roughly two girls for every boy.17PubMed. Age- and sex-related differences in the presentation of paediatric migraine Tension-type headache does not show this pronounced hormonal pattern, which again points to a fundamentally different underlying biology.
How Migraine Looks Different in Children
Migraine in children doesn’t always match the textbook adult description, which is part of why it gets missed so often. Younger children are more likely to report nausea and vomiting as dominant symptoms, and their headaches may be bilateral (on both sides) rather than the classic one-sided pattern adults describe. A higher proportion of adolescents, compared to younger children, endorse the throbbing quality that clinicians associate with migraine. Adolescent girls are also more likely than younger children to have co-occurring anxiety.17PubMed. Age- and sex-related differences in the presentation of paediatric migraine If a child has recurrent episodes of moderate to severe headache with nausea and sensitivity to light, migraine is the likely diagnosis even if the pain doesn’t fit the adult stereotype.
Headaches That Are Neither Tension-Type Nor Migraine
The tension-versus-migraine question covers the two most common headache types, but it is worth knowing that a third primary headache disorder exists: cluster headache. Cluster attacks produce excruciating pain around one eye, lasting fifteen minutes to three hours per episode, and come with distinctive signs on the affected side like tearing, a droopy eyelid, or nasal congestion.18PubMed Central. Cluster headache The pain intensity can be even more severe than migraine, but the attacks are shorter. Cluster headache is rare, affecting an estimated half to one person per thousand, and disproportionately strikes younger men.
All three of these are primary headache disorders, meaning the headache itself is the condition, not a symptom of something else. Secondary headaches, by contrast, are caused by an underlying problem such as an infection, a bleed, or a structural issue in the brain. Red flags that suggest a secondary headache include sudden onset at maximum intensity, a headache pattern that has recently changed in character, focal neurological signs like weakness on one side, seizures, systemic signs like fever, and headache triggered by physical exertion.19PubMed Central. Secondary headaches – red and green flags and their significance for diagnostics When none of these red flags are present, a primary headache disorder is far more likely.20PubMed. Headache Disorders: Differentiating Primary and Secondary Etiologies But a brand-new, severe headache that feels unlike anything you’ve experienced before warrants medical attention regardless of what you suspect the cause might be.
Treatment Differs Because the Biology Differs
For an occasional tension-type headache, a standard over-the-counter painkiller and maybe a stretch or a nap will usually do the job. Migraine treatment is more involved because the underlying process is more complex.
Acute migraine treatment has evolved considerably. Triptans, which have been the mainstay for decades, work by narrowing blood vessels and blocking pain pathways in the trigeminovascular system. More recently, a class of drugs called gepants has been developed to block CGRP directly. Second-generation gepants such as rimegepant and ubrogepant are taken orally for acute attacks, while a third-generation gepant, zavegepant, is administered through different routes.21PubMed Central. Gepants for Acute and Preventive Migraine Treatment: A Narrative Review Unlike triptans, gepants don’t constrict blood vessels, which makes them an option for people with certain cardiovascular risk factors.
For people who have migraine frequently enough that it disrupts their lives, preventive treatment aims to reduce the number of attacks. CGRP-targeting monoclonal antibodies, including erenumab, fremanezumab, galcanezumab, and eptinezumab, are given as injections monthly or quarterly and have been shown to decrease the number of headache days and improve disability.22PubMed Central. Advances in CGRP Monoclonal Antibodies as Migraine Therapy: A Narrative Review These therapies represent a genuine shift in migraine care, offering better tolerability compared with older preventive options and increasingly being used as first-line choices for selected patients.23PubMed Central. CGRP-Targeted Migraine Therapies in Patients With Vascular Risk Factors or Stroke The fact that drugs designed around a specific migraine mechanism work so well reinforces how different the biology of migraine is from that of a tension headache.
The Medication Overuse Trap
One risk shared by both headache types is medication overuse headache, where taking painkillers too frequently causes the headaches to become more frequent and harder to treat. Imaging and neurophysiology studies in people with medication overuse headache show changes in the brain’s pain networks and signs of heightened nerve excitability, though the full picture remains unclear.24PubMed Central. Preventing and treating medication overuse headache As a rough guide, using acute headache medication on more than ten to fifteen days a month is considered the danger zone. People with migraine are especially vulnerable to this cycle because their attacks can be so severe that reaching for medication feels non-negotiable. If your headaches are frequent enough that you’re medicating most days, that’s a signal to talk to a doctor about a preventive strategy rather than continuing to treat each individual attack.
Neuromodulation Devices
For people who want to limit their medication use or can’t tolerate drugs, a growing number of handheld or wearable devices offer electrical or magnetic stimulation of nerves involved in headache. These non-invasive neuromodulation devices are generally considered safe and well tolerated for migraine and related headache disorders.25PubMed Central. Update on Neuromodulation for Migraine and Other Primary Headache Disorders A meta-analysis of randomized trials found that non-invasive neuromodulation roughly doubled the chance of being pain-free within two hours compared with sham devices, though the benefit did not clearly persist at forty-eight hours.26PubMed. Non-invasive neuromodulation in the acute treatment of migraine: a systematic review and meta-analysis of randomized controlled trials International Headache Society guidelines have issued weak recommendations for several specific devices for both acute and preventive migraine treatment.27PubMed. International Headache society evidence-based guidelines on the use of non-invasive neuromodulation devices for the acute and preventive treatment of migraine “Weak recommendation” sounds dismissive, but in guideline language it simply means the evidence favors the treatment while leaving room for individual preference. For someone who gets migraines frequently but has trouble with medications, these devices can be a useful piece of the puzzle.
Migraine and Stroke Risk
One health consequence unique to migraine, particularly migraine with visual aura, is a modestly elevated risk of ischemic stroke. A large prospective study found that people with migraine with visual aura had about 1.7 times the risk of ischemic stroke compared with people who don’t have headaches.28PubMed Central. Ischemic stroke subtypes and migraine with visual aura in the ARIC study In absolute terms, the overall stroke risk for young, otherwise healthy people with migraine is still low. But this association is why doctors sometimes recommend that women who have migraine with aura avoid estrogen-containing birth control, which itself carries a small stroke risk. Tension-type headache has no comparable vascular link.
The Gut Connection
An area of active research is the relationship between gut health and migraine. People with migraine are more likely than average to also have irritable bowel syndrome, and both conditions involve inflammatory signaling molecules and altered gut bacteria composition.29PubMed Central. Gut-brain Axis and migraine headache: a comprehensive review One study comparing people with episodic and chronic migraine to healthy controls found that specific gut bacteria were associated with lower headache frequency and less intense pain.30Scientific Reports. Altered gut microbiota in individuals with episodic and chronic migraine The evidence is still too early to turn into firm dietary prescriptions, but some researchers have proposed that approaches supporting gut health, including adequate fiber, omega-3 supplements, probiotics, and vitamin D, might complement standard migraine treatments.29PubMed Central. Gut-brain Axis and migraine headache: a comprehensive review None of this applies specifically to tension-type headache, which has not shown the same gut-brain axis involvement. It is yet another piece of evidence that migraine is a systemic neurological condition rather than just a headache that happens to be worse.