An untreated migraine attack typically lasts 4 to 72 hours, with the headache phase itself running several hours to three days. But the full experience, from the earliest warning signs to the lingering “migraine hangover,” can stretch well beyond that window. How long your migraine lasts depends on the phase of the attack, whether you treat it early, your age, and even your hormonal cycle.
The Official Duration Window
The International Classification of Headache Disorders defines a migraine without aura as a headache lasting 4 to 72 hours when untreated or unsuccessfully treated. That range is deliberately wide because migraine duration varies enormously from person to person, and even from one attack to the next in the same person. Some people consistently get shorter attacks that resolve in four to six hours. Others routinely endure two or three full days of pain before the headache lifts on its own.
If you treat a migraine early and effectively, you can shorten that window significantly. Many attacks that would otherwise last a full day or longer can be cut to a few hours with the right medication taken at the first sign of pain.
The Four Phases of a Migraine Attack
The headache is only one part of a migraine. Most attacks move through up to four distinct phases, each with its own timeline. Not everyone experiences all four, but understanding them helps explain why a migraine can feel like it dominates far more than a single day.
Prodrome
The prodrome is the early warning phase. You might notice food cravings, mood changes, neck stiffness, frequent yawning, or unusual fatigue. This phase can last several hours or stretch over several days before the headache arrives. Many people learn to recognize their prodrome signals and use them as a cue to prepare or take medication early.
Aura
About one in four people with migraines experience aura, which usually involves visual disturbances like flashing lights, zigzag lines, or blind spots. Aura symptoms build gradually over at least five minutes and typically last up to 60 minutes. In roughly 20% of people who get aura, it can last longer than an hour. Aura usually occurs just before or at the start of the headache phase, though some people get aura without a headache at all.
Headache
This is the phase most people think of as “the migraine.” Throbbing or pulsing pain, usually on one side of the head, along with nausea, light sensitivity, and sound sensitivity. It typically lasts several hours to three days. Movement tends to make it worse, which is why most people retreat to a dark, quiet room during an attack.
Postdrome
More than 80% of people with migraines experience a postdrome, often called a migraine hangover. Even after the headache pain fades, you can feel exhausted, foggy, sore, and mentally drained for hours to two full days. This phase catches many people off guard because the pain is gone but they still can’t function normally. The postdrome can add up to 48 hours to the total length of a migraine episode.
When you add all four phases together, a single migraine episode can realistically span anywhere from one day to nearly a week from first prodrome symptom to postdrome recovery.
When a Migraine Won’t Stop
A migraine that continues unbroken for more than 72 hours is classified as status migrainosus. This is considered a complication of migraine and typically requires medical attention because the prolonged pain, nausea, and inability to eat or sleep can lead to dehydration and other problems. Brief breaks in pain lasting up to 12 hours due to sleep or medication don’t reset the clock. If the attack resumes and continues to be debilitating past that 72-hour mark, it still qualifies.
Status migrainosus is not common, but it’s not rare either, especially in people with frequent or poorly controlled migraines. If your attacks regularly push past three days, that pattern is worth discussing with a doctor because it often signals that your current treatment approach needs adjustment.
How Duration Differs in Children
Migraines in children and adolescents follow a shorter timeline. Pediatric attacks can last as little as 2 hours, compared to the 4-hour minimum in adults, and they often improve with sleep. A child who lies down in a dark room and naps may wake up with the migraine resolved, something that happens less reliably in adults. The attacks also tend to present differently in kids: pain is more often felt on both sides of the head rather than one, and stomach symptoms like nausea and vomiting can be more prominent than the headache itself.
Menstrual Migraines Last Longer
If you notice that your migraines around your period feel worse and drag on longer than attacks at other times of the month, that pattern is well documented. Perimenstrual migraine attacks last longer, are more severe and disabling, require more medication, and are more likely to recur after treatment compared to attacks at other points in the cycle. They also tend to come with more intense light and sound sensitivity. The hormonal drop in estrogen that triggers the menstrual cycle is the likely driver, which is why these attacks are often harder to treat with the same approach that works for non-menstrual migraines.
Chronic Versus Episodic Migraine
The question of “how long migraines last” takes on a different meaning when attacks become frequent enough to blur together. Episodic migraine means you have distinct attacks with clear pain-free periods between them. Chronic migraine is defined as 15 or more headache days per month, with at least 8 of those days having migraine features, persisting for more than three months.
People with chronic migraine often struggle to pinpoint where one attack ends and another begins. The constant cycling between headache, postdrome, and the next prodrome can make it feel like the migraine never fully stops. Chronic migraine affects roughly 1 to 2% of the general population, but it develops over time. Most people with chronic migraine started with episodic attacks that gradually increased in frequency, a process called chronification. Risk factors for this progression include overusing acute pain medications, untreated depression or anxiety, obesity, and high caffeine intake.
What Shortens or Lengthens an Attack
Several factors influence whether your migraine resolves quickly or lingers:
- Treatment timing: Taking acute medication within the first hour of pain consistently produces better outcomes than waiting until the attack is fully established. Once pain becomes moderate or severe, the same medication is less likely to stop it completely.
- Sleep: Many migraine attacks, especially shorter ones, resolve with sleep. This is particularly true in children but applies to adults as well.
- Triggers stacking: A migraine triggered by a single factor (like a skipped meal) may resolve faster than one driven by multiple overlapping triggers (poor sleep plus stress plus alcohol plus weather changes).
- Medication overuse: Frequent use of acute migraine medications, generally more than 10 to 15 days per month depending on the type, can paradoxically make attacks last longer and occur more often. This creates a cycle where the treatment itself contributes to the problem.
Individual biology plays a large role too. Some people simply have shorter attack patterns, and others have longer ones regardless of what they do. Tracking your attacks with a headache diary, noting when they start and end along with potential triggers, is one of the most useful things you can do to understand your own pattern and communicate it clearly to a healthcare provider.