A migraine attack typically lasts between 4 and 72 hours without treatment. That’s the clinical standard used to diagnose migraines in adults, though the full experience, including the warning signs before and the recovery period after, can stretch the total timeline well beyond three days.
The Four Phases of a Migraine Attack
A migraine isn’t just a headache that switches on and off. It moves through up to four distinct phases, and most people don’t experience all of them every time. Understanding these phases helps explain why you might feel “off” long before the pain starts and drained long after it stops.
The prodrome is the earliest warning phase. It can begin several hours to several days before the headache itself. Common signs include food cravings, mood shifts, neck stiffness, frequent yawning, and increased thirst. Not everyone recognizes these signals, but tracking them over time can help you anticipate an attack.
The aura phase affects roughly one in four people with migraines. It typically builds gradually over about 5 minutes and lasts between 5 and 60 minutes, though in about 20% of people it can extend beyond an hour. Aura symptoms are usually visual (flashing lights, blind spots, zigzag lines) but can also include tingling in the face or hands, difficulty speaking, or even temporary weakness on one side of the body. A headache usually follows within 60 minutes of the aura ending.
The headache phase is the main event. It lasts from several hours to up to three days and typically involves throbbing pain on one side of the head, nausea, and intense sensitivity to light and sound. This is the 4-to-72-hour window that defines a migraine diagnosis.
The postdrome, sometimes called a “migraine hangover,” lingers after the pain resolves. It can last anywhere from a few hours to two full days. Symptoms include fatigue, difficulty concentrating, body aches, a stiff neck, lingering light sensitivity, dizziness, and mood changes. Many people describe feeling foggy or washed out during this phase, even though the headache is technically gone.
Total Timeline From Start to Finish
If you add up the phases, a single migraine episode can span considerably longer than 72 hours. Someone who gets a day-long prodrome, a 30-minute aura, a two-day headache, and a day of postdrome recovery is looking at roughly four days of disruption from one attack. In milder cases, the entire cycle might wrap up within 12 to 18 hours. The range is wide, and it varies not just between people but between individual attacks in the same person.
When a Migraine Lasts Longer Than 72 Hours
A migraine that continues unbroken beyond 72 hours is classified as status migrainosus. This is considered a complication of migraine, not just a long attack. The pain and associated symptoms are debilitating, and brief interruptions from sleep or medication (up to 12 hours) don’t reset the clock. Status migrainosus typically requires medical intervention beyond what you’d use for a normal attack, because standard treatments often aren’t enough to break the cycle at that point.
Migraines in Children Are Often Shorter
Children’s migraines tend to be briefer than adult attacks. In one study of pediatric patients, about half had headaches lasting less than 4 hours, and roughly 14% had attacks shorter than 2 hours. The formal diagnostic criteria now allow for durations as short as 2 hours in people under 18, though researchers have argued even that threshold is too strict. In children younger than 15, shorter attacks are common and don’t rule out migraine as a diagnosis.
Menstrual Migraines Last Longer
Migraines that occur around the menstrual period are consistently longer, more severe, and harder to treat than attacks at other times of the cycle. Research published in the journal Neurology found that perimenstrual attacks required more medication, were more likely to come back after initial treatment, and involved greater sensitivity to light and sound. Women using hormonal contraception with a monthly withdrawal bleed showed the same pattern of longer, more intense attacks during that window. If your worst migraines cluster around your period, this is a well-documented pattern worth discussing with your doctor.
Chronic vs. Episodic Migraine
Individual attack duration and overall migraine frequency are separate issues, but they’re often confused. Episodic migraine means you get attacks, but fewer than 15 headache days per month. Chronic migraine is defined as headache on 15 or more days per month for longer than 3 months, with at least 8 of those days having migraine features. Chronic migraine doesn’t mean each attack is longer. It means attacks are so frequent they blend together, sometimes making it hard to tell where one ends and the next begins.
What Affects How Long Your Migraines Last
Several factors influence attack duration beyond the basics of individual biology. Treating early matters: taking medication at the first sign of an attack, rather than waiting for the pain to build, generally shortens the headache phase. Delayed treatment often leads to longer, harder-to-break attacks.
Sleep plays a significant role. Many people find that falling asleep during a migraine can end the headache phase, which is one reason why attacks that start in the evening sometimes resolve faster than those beginning in the morning. Dehydration, skipped meals, and high stress can all extend an attack or make it more resistant to treatment.
Medication overuse is another factor. Using pain relief too frequently (generally more than 10 to 15 days per month, depending on the type) can paradoxically increase both the frequency and duration of migraines over time. If your attacks are gradually getting longer or more frequent, this is one of the first things to evaluate.