A typical migraine attack lasts between 4 and 72 hours when untreated, based on the International Headache Society’s diagnostic criteria. But the full experience, from the earliest warning signs to the final recovery phase, can stretch well beyond that window. How long your migraine actually keeps you down depends on the type, whether you treat it early, and how your body moves through each stage of the attack.
The Four Phases of a Migraine Attack
A migraine isn’t just a headache that switches on and off. It unfolds in 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 takes over an entire day or more.
Prodrome (Hours to Days Before Pain)
The prodrome is the early warning system. It can start hours before the headache or even a full day or two ahead of it. Symptoms during this phase include mood shifts like irritability or depression, difficulty concentrating, fatigue, neck stiffness, food cravings, frequent urination, and excessive yawning. Many people don’t recognize these as migraine signals until they’ve tracked their attacks over time. If you can identify your prodrome, it opens a window for early treatment that may shorten the overall attack.
Aura (5 to 60 Minutes)
About a quarter of people with migraines experience aura, which typically lasts between 5 and 60 minutes. Aura symptoms are neurological: you might see flashing lights, zigzag lines, or blind spots, or feel tingling in your face or hands. In rare cases, aura can last longer than 60 minutes or persist for up to a week, but that’s uncommon and worth discussing with a neurologist.
Headache Phase (4 to 72 Hours)
This is the phase most people mean when they ask how long a migraine lasts. Untreated, the pain typically persists for 4 to 72 hours. The headache is usually on one side of the head, pulsing or throbbing, and worsened by physical activity. Nausea, vomiting, and extreme sensitivity to light and sound are common companions. Some attacks wrap up in half a day; others stretch across three full days. The severity and length vary not just between people but between individual attacks in the same person.
Postdrome (Up to 24 Hours After Pain Ends)
Even after the headache fades, most people aren’t back to normal right away. About 81% of migraine sufferers experience the postdrome, often called the “migraine hangover.” You might feel drained, foggy, or have trouble concentrating. Some people report mild head soreness or mood changes. A study published in the journal Neurology found that 54% of attacks with a postdrome resolved within 6 hours, and 93% cleared within 24 hours. Only about 7% lingered beyond a full day.
Add it all up and a single migraine episode, from the first prodrome symptom to full recovery, can span anywhere from about 12 hours to nearly five days.
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 unremitting, meaning they don’t respond to your usual treatments. Status migrainosus often requires medical intervention beyond what you’d normally do at home, and it carries a higher risk of dehydration from prolonged nausea and vomiting. If your migraine pushes past the three-day mark without meaningful relief, that’s a signal to seek urgent care.
Migraine Recurrence After Treatment
One frustrating pattern is the migraine that seems to end, only to come roaring back. Headache recurrence within two days of successful treatment happens in up to 50% of cases. This is sometimes called a “rebound” headache, and it can make a single migraine episode feel like it stretches across most of a week. Up to 10% of people treated in emergency settings return specifically because of this rebound effect. Taking a second dose of medication when the headache returns (if your treatment plan allows it) is a common approach, but recurring rebounds are worth raising with your doctor.
Vestibular Migraine Duration
Vestibular migraines are a distinct subtype where dizziness and vertigo dominate, sometimes with minimal head pain. Their duration is unusually variable. Vertigo episodes can last anywhere from five minutes to 72 hours, and some people experience symptoms that come and go within a single day. This wide range makes vestibular migraines harder to pin down than the classic type. If your primary symptom is dizziness rather than head pain, the duration rules for standard migraines won’t match your experience.
Chronic Migraine vs. Episodic Migraine
The question of “how long” takes on a different meaning for people with chronic migraine. This diagnosis applies when you have headaches on 15 or more days per month for more than three months, with at least 8 of those days meeting the criteria for migraine. For people with chronic migraine, individual attacks may still follow the 4-to-72-hour pattern, but the sheer frequency means there’s little recovery time between episodes. Life with chronic migraine can feel like one continuous headache punctuated by better and worse days.
Episodic migraine, by contrast, means fewer than 15 headache days per month. Most people with migraines fall into the episodic category, but the condition can progress. Overuse of pain medication is one of the most common drivers of that shift from episodic to chronic.
What Affects How Long Your Migraines Last
Several factors influence whether your attacks lean toward the shorter or longer end of the spectrum. Treating early is one of the most reliable ways to shorten an attack. Medications work best when taken at the first sign of pain or even during the prodrome phase, rather than after the headache is fully established. Waiting too long allows the pain pathways to become more entrenched, making the attack harder to stop.
Sleep plays a significant role. Many people find that a migraine resolves after sleep, and sleep deprivation is a well-known trigger that can also extend attack duration. Hydration and managing nausea early matter too, since dehydration from vomiting can prolong and intensify symptoms.
Your individual biology sets the baseline. Some people consistently have shorter attacks in the 4-to-12-hour range, while others routinely hit 48 hours or more. Hormonal fluctuations, particularly drops in estrogen around menstruation, tend to trigger longer and more severe episodes. Menstrual migraines are notoriously harder to treat and more likely to recur within the same cycle.
Keeping a migraine diary that tracks not just triggers but the total duration of each phase can reveal your personal patterns. That information is one of the most useful things you can bring to a specialist, because it shapes decisions about which preventive strategies are worth trying.