A single migraine headache typically lasts between several hours and three days. But that’s just the headache phase. The full migraine experience, from the earliest warning signs to the final lingering fog, can stretch considerably longer. How long yours lasts depends on which phase you’re in, whether you treat it, and whether your pattern is episodic or chronic.
The Four Phases of a Migraine Attack
A migraine isn’t just a headache. It unfolds in up to four distinct phases, and most people don’t experience all of them every time. Understanding these phases helps explain why a migraine can feel like it takes over an entire week even when the actual head pain only lasted a day.
The prodrome is the early warning phase. It can begin hours or even days before the headache starts. You might notice food cravings, mood changes, neck stiffness, frequent yawning, or increased thirst. Not everyone recognizes these signals, but tracking them can help you anticipate an attack.
The aura phase affects roughly one in four people with migraine. It typically involves visual disturbances like zigzag lines, blind spots, or flashing lights, though it can also cause tingling, numbness, or difficulty speaking. Each aura symptom lasts 5 to 60 minutes and builds gradually. When multiple aura symptoms occur in sequence, the total aura phase can last longer. About 20% of people experience auras lasting more than 60 minutes. In rare cases involving motor symptoms (weakness on one side of the body), aura can persist for up to 72 hours.
The headache phase is what most people think of as the migraine itself. It typically lasts several hours to three days, with moderate to severe throbbing pain, usually on one side of the head. Nausea, vomiting, and extreme sensitivity to light, sound, or smells are common during this window.
The postdrome, sometimes called a “migraine hangover,” follows the headache. It can last a few hours to two days. Symptoms include fatigue, body aches (especially a stiff neck), difficulty concentrating, dizziness, lingering light and sound sensitivity, and mood changes ranging from euphoria to depression. Many people describe feeling drained or mentally foggy during this phase, even though the pain is gone.
Adding these phases together, a complete migraine cycle from prodrome through postdrome can span anywhere from one day to roughly a week.
When a Migraine Won’t Stop: Status Migrainosus
If the headache phase of a migraine lasts longer than 72 hours without letting up, it crosses into a condition called status migrainosus. This is a severe, unremitting migraine that doesn’t respond to your usual treatments. It carries the same characteristics as your typical migraine attacks, just with a duration that won’t break.
Status migrainosus often requires treatment in an emergency room or urgent care setting, where providers can administer stronger medications (sometimes called a “migraine cocktail”) to interrupt the pain cycle. Dehydration from prolonged nausea and vomiting can make things worse, so IV fluids are common during these visits. If your migraine has lasted more than three days and isn’t responding to anything you’ve tried at home, that’s the threshold where medical intervention becomes important.
Migraine Duration in Children
Children’s migraines tend to be shorter than adults’. While the standard diagnostic criteria set the minimum duration at four hours for adults, pediatric neurologists have long recognized that children frequently have attacks lasting as little as two hours. A 1999 study found that only 34% of children met the standard adult criteria, but when the duration range was adjusted to 2 to 48 hours for those under 15, nearly 60% qualified. Shorter attacks in kids are genuinely migraine, not a lesser condition.
Children are also more likely to experience migraine pain on both sides of the head rather than just one, and their attacks may center more on nausea and vomiting than on the headache itself.
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. At this frequency, individual attacks blur together, and it becomes difficult to tell where one migraine ends and the next begins.
Episodic migraine, by contrast, means fewer than 15 headache days per month. Most people with migraine fall into this category. Episodic migraine can progress to chronic migraine over time, particularly when attacks go undertreated or when overuse of pain medication creates a rebound cycle.
Red Flags That Need Immediate Attention
Duration alone isn’t the only reason to seek emergency care. A migraine that brings new or unfamiliar symptoms warrants a trip to the ER regardless of how long it’s lasted. These include:
- Thunderclap onset: pain that reaches peak intensity within 60 seconds, rather than building gradually
- New neurological symptoms: weakness on one side of the body, slurred speech, confusion, balance problems, or vision loss you haven’t experienced before
- The worst headache of your life: pain that feels categorically different from your usual migraines, especially if it’s in a new location or has a different quality (stabbing instead of throbbing, for example)
- Fever or neck stiffness: these can signal infection rather than migraine
- Post-injury headache: any significant headache within seven days of a head injury
People with heart disease, liver disease, kidney disease, a history of stroke, or who are pregnant should be especially cautious. During pregnancy, a new-onset headache with high blood pressure or vision changes needs urgent evaluation, as it can indicate a condition unrelated to migraine.
What Affects How Long Your Migraine Lasts
Several factors influence whether your migraine wraps up in a few hours or drags on for days. Treating early in the attack, ideally during prodrome or within the first hour of head pain, tends to shorten the overall duration significantly. Waiting until pain is severe makes it harder for medications to work.
Sleep plays a major role. Many people find that a migraine “resets” after a full night of sleep, and sleep deprivation is one of the most common triggers for prolonged attacks. Dehydration, skipped meals, and hormonal shifts (particularly around menstruation) can also extend duration.
Stress doesn’t just trigger migraines. It can prolong them. Interestingly, many people experience “let-down” migraines that hit after a stressful period ends, like the first day of a vacation or a weekend after a demanding work week. These attacks follow the same duration patterns but can feel more stubborn because the body’s stress hormones are in flux.
Overusing acute pain medications (taking them more than 10 to 15 days per month, depending on the type) can lead to medication-overuse headache, which layers on top of migraine and makes each attack last longer. Breaking this cycle usually requires a supervised period of medication withdrawal, which temporarily worsens symptoms before improving them.