A typical migraine attack lasts between 4 and 72 hours when untreated. That’s the clinical benchmark, but it only describes the headache phase itself. The full experience, from the earliest warning signs to the foggy aftermath, can stretch well beyond three days. How long your migraine actually lasts depends on which phase you’re counting, whether you treat it, and your age.
The Headache Phase: 4 to 72 Hours
The International Headache Society defines a migraine attack as lasting 4 to 72 hours without treatment or with treatment that doesn’t work. Most people fall somewhere in the middle of that range, with attacks peaking and resolving within a day or so. But plenty of people experience shorter or longer episodes that still qualify as migraine.
If you treat a migraine early and effectively, the headache phase can be significantly shorter. Many people who take medication within the first hour of pain find relief in two to four hours. Waiting longer to treat generally means a longer, more stubborn attack.
The Full Timeline Is Longer Than You Think
The headache itself is only one part of a migraine. Most attacks move through up to four distinct phases, and the total experience can last several days even when the pain portion is relatively brief.
Prodrome (Hours to a Day Before Pain)
The prodrome is an early warning phase that typically shows up 1 to 6 hours before the headache begins, though some people notice symptoms up to a day ahead. The most common signs are sensitivity to light (reported by about 57% of people in the prodrome phase), fatigue (50%), neck pain (42%), sensitivity to sound (34%), and difficulty thinking or concentrating (30%). Irritability and dizziness are also common. Not everyone recognizes their prodrome, but learning your personal pattern can give you a window to treat early.
Aura (5 to 60 Minutes)
Only about a quarter of migraine sufferers experience aura, which typically involves visual disturbances like zigzag lines, blind spots, or flashing lights. Some people get tingling in their face or hands, or have trouble finding words. Aura usually lasts between 5 and 60 minutes and tends to resolve before or shortly after the headache begins. In rare cases, aura symptoms can persist for more than an hour or even up to a week, which warrants medical evaluation to rule out other neurological causes.
Postdrome (Up to 48 Hours After Pain)
More than 80% of people with migraine experience the postdrome, often called a “migraine hangover.” This phase can last anywhere from a few hours to two full days after the headache resolves. Common symptoms include fatigue, brain fog, body soreness, and difficulty concentrating. Many people describe feeling washed out or fragile during this window. It’s a real, physiological phase of the attack, not just tiredness from being in pain.
When you add up all four phases, a single migraine episode can realistically span anywhere from half a day to nearly a week from first symptom to full recovery.
Migraines Are Shorter in Children
Children and teenagers tend to have shorter migraine attacks than adults. In one study of pediatric patients, about 49% had headaches lasting less than four hours, with 14% resolving in under two hours. The standard adult criteria of 4 to 72 hours actually fails to capture many childhood migraines. Researchers have suggested that a duration range of 2 to 48 hours better fits children under 15. If your child has recurring headaches that look like migraines but seem “too short,” they may still be migraines.
When a Migraine Won’t Stop
A migraine that lasts longer than 72 hours is classified as status migrainosus, a complication that requires medical attention. The pain is continuous or nearly so, with any breaks lasting less than 12 hours. This is more than just a bad migraine. Prolonged attacks increase the risk of dehydration (especially if vomiting makes it hard to keep fluids down) and can signal that something else is going on.
If your headache has persisted beyond the 72-hour mark, it’s worth going to an emergency room or urgent care, particularly if you can’t eat or drink. Hospital treatment focuses on breaking the pain cycle and rehydrating you, and most people feel significant relief within hours of receiving care.
Chronic vs. Episodic Migraine
Individual attack duration is different from how often migraines occur. Episodic migraine means you have fewer than 15 headache days per month. Chronic migraine means you have headaches on 15 or more days per month for at least three months, with at least 8 of those days having migraine features. Each individual attack in chronic migraine still follows the same 4-to-72-hour pattern, but the attacks come so frequently that many people feel like they’re never fully between episodes.
About 3% of people with episodic migraine transition to chronic migraine each year. Factors that increase that risk include overuse of pain medication (taking it more than 10 to 15 days per month), poor sleep, untreated anxiety or depression, and obesity. Preventive treatment can reduce both the frequency and duration of attacks over time.
What Affects How Long Your Migraines Last
Several factors influence whether your attacks tend toward the shorter or longer end of the spectrum:
- Treatment timing. Taking medication at the first sign of pain consistently shortens attacks. Waiting until pain is moderate or severe makes it harder for medication to work.
- Sleep. Many migraines resolve after sleep, which is why some shorter attacks end overnight. Poor or disrupted sleep, on the other hand, can extend an attack.
- Hydration and food. Dehydration and skipped meals are common triggers that can also prolong an episode once it starts.
- Hormonal timing. Menstrual migraines, which occur around the start of a period, tend to last longer than migraines at other times of the month and are often more resistant to treatment.
- Trigger load. Exposure to multiple triggers at once (say, poor sleep plus alcohol plus stress) tends to produce longer, more severe attacks than a single trigger alone.
Tracking your migraine duration alongside potential triggers in a headache diary can reveal patterns that help you and your doctor choose the right treatment approach. If your attacks are consistently lasting longer than they used to, or if they’ve started exceeding 72 hours, that shift is worth reporting.