Key takeaways
- No single blood test, scan, eye test, or home task independently confirms migraine.
- Diagnosis usually depends on a detailed attack history and a neurological examination.
- Tests may be used to investigate another suspected cause rather than to show migraine itself.
- A diary or questionnaire can support a clinical conversation but cannot make the diagnosis.
There is usually no single migraine test. A blood test, MRI, CT scan, eye examination, questionnaire, or phone task cannot independently confirm that a person has migraine. Clinicians generally make the diagnosis by reviewing the pattern of attacks, applying established criteria, and performing an appropriate physical and neurological examination. Additional testing is selected when the history or examination suggests another possible cause or when important features are unusual.
That can feel less concrete than receiving a laboratory result, but history-based diagnosis does not mean guesswork. Migraine has recognizable combinations of duration, pain features, associated symptoms, frequency, and functional impact. The clinician also looks for details that do not fit the expected pattern. A home record can make that history more accurate, but it remains supporting information rather than a diagnostic instrument.
How migraine is usually evaluated
The evaluation begins with the story of the attacks. A clinician may ask when headaches began, how often they occur, whether they are changing, how long each phase lasts, and whether there are symptom-free intervals. Pain location, quality, intensity, and worsening with routine activity help describe the pattern. Nausea, vomiting, light or sound sensitivity, aura, dizziness, neck symptoms, fatigue, and cognitive changes add context.
The history also covers medicines, caffeine, sleep, menstrual or hormonal patterns when relevant, head injury, infection, pregnancy, family history, and other medical conditions. Medication frequency matters because some patterns of frequent use can complicate headache. Do not stop or change a medicine for diagnostic purposes without the prescribing clinician's advice.
A physical and neurological examination may include vital signs, mental status, eye movements and visual fields, facial function, strength, sensation, coordination, reflexes, and walking. The exact examination depends on the symptoms. A normal examination does not prove migraine, and an abnormal finding does not automatically identify a cause; it helps guide the next clinical decision.
The migraine symptom guide can help organize associated features, while the migraine and headache comparison explains why severity alone is not diagnostic.
Questions that make the headache history useful
Prepare short, specific answers rather than trying to choose the diagnosis. Where is the pain, and does its location change? Does it pulse, press, burn, or stab? How quickly does it build? How long does the headache last untreated or after treatment? Does ordinary movement make it worse? Are nausea, vomiting, sensory sensitivity, dizziness, or neurological symptoms present?
For visual, sensory, or speech symptoms, record whether they appeared suddenly or gradually, how they progressed, whether they completely resolved, and how they related to head pain. New neurological symptoms require evaluation because migraine aura can overlap with urgent disorders. Do not rely on a familiar label when a symptom is meaningfully different from the pattern a clinician previously assessed.
Functional impact is clinically useful. Note missed work or school, inability to drive, difficulty caring for someone, reduced physical activity, or a need to lie in a dark room. Also record headache days rather than only attacks, because one prolonged episode can span more than one calendar day.
What common migraine tests can and cannot show
Different tests answer different questions. They are not interchangeable, and none should be ordered or interpreted without the relevant clinical context.
| Test or tool | What it may contribute | What it cannot do alone |
|---|---|---|
| Medical history and headache diary | Shows recurring timing, symptoms, frequency, duration, and functional impact | Prove the cause or exclude every alternative |
| Neurological examination | Looks for findings that support or change the evaluation | Confirm migraine from one normal or abnormal sign |
| Blood testing | Investigates selected metabolic, inflammatory, infectious, or other suspected contributors | Directly detect migraine through a standard marker |
| MRI or CT | Evaluates structural or urgent alternative causes when clinically indicated | Ordinarily display migraine as a diagnostic image |
| Eye examination | Assesses visual function and possible ocular causes | Determine that every visual symptom is migraine aura |
| Questionnaire or digital task | Organizes symptoms or repeated personal performance | Diagnose, clear, or rule out migraine |
There is no standard blood test that directly confirms migraine. A clinician may order blood work when the history suggests another condition worth investigating. A normal panel should not be treated as proof that a headache is migraine, and an abnormal result requires interpretation in the broader medical picture.
MRI and CT scans are also not migraine detectors. Evidence-based guidance does not support routine imaging solely for reassurance when headaches fit migraine, the neurological examination is normal, and no atypical features or red flags are present. Imaging may be considered for a first or worst headache, meaningful pattern change, persistent or unusual aura, abnormal examination, post-traumatic headache, or another concern. The clinician selects the modality and urgency.
Online questionnaires, eye tests, and app tasks
Online migraine quizzes may ask about nausea, activity-related worsening, sensory sensitivity, duration, and disability. A well-designed questionnaire can make it easier to remember relevant details or indicate that a professional discussion is warranted. It cannot examine the person, recognize every secondary cause, or account for the complete history.
Visual, vestibular, balance, or reaction-time performance may vary during or around migraine attacks. Repeated personal data can show that a task was slower, less comfortable, or more variable under a defined condition. That observation does not establish why it changed. Device characteristics, screen brightness, vision correction, fatigue, medication, pain, sleep, and practice can all influence performance.
An eye-brain vision check can supplement a symptom record when appropriate, but it cannot diagnose migraine, distinguish aura from stroke, rule out an eye emergency, or replace an eye or neurological examination. Stop any task that worsens symptoms or conflicts with a care plan.
The migraine condition page describes Alumina's non-diagnostic role, and the migraine education hub provides focused articles without presenting the app as a clinical test.
Building a useful headache diary
A diary should reduce recall burden, not create a second illness to manage. For each attack, record the date, earliest symptom, headache onset and end, return to baseline, pain features, nausea, sensory sensitivity, aura or other neurological symptoms, treatment and timing, and functional impact. Add a few relevant context fields such as sleep, illness, meals, hydration, stress, or menstrual timing.
Use the same short format repeatedly. Include ordinary or symptom-free periods so the record does not contain only the worst moments. Avoid testing suspected triggers by withholding food, sleep, hydration, or prescribed medication. Review patterns over several weeks or months with a clinician rather than making a conclusion after one attack.
The migraine tracking guide offers a practical structure. Bring a one-page summary showing headache days, typical duration, common associated symptoms, changes over time, and the questions you want answered. Keep the full log available if the clinician wants details.
When further evaluation may be needed
Seek routine clinical evaluation for recurrent headaches, attacks that limit daily activity, an uncertain pattern, symptoms that are worsening, or frequent medication use. Contact a clinician sooner for new headaches later in life, headaches associated with pregnancy or postpartum, cancer or immune concerns, fever, injury, or a major departure from the usual pattern.
Emergency care is appropriate for the warning signs described above. Do not take a normal app result, pupil appearance, home blood pressure reading, or previous migraine diagnosis as reassurance against a new emergency. Likewise, do not assume an unusual result means a dangerous condition; obtain the level of care the symptoms warrant.
How Alumina supports evaluation without diagnosing
Alumina Health can help organize longitudinal symptom entries and repeatable assessment observations between visits. The useful output is a pattern: when attacks occurred, what accompanied them, how function changed, and whether personal task performance varied. It is not a migraine detection test and cannot recommend imaging, interpret blood work, prescribe treatment, or decide that symptoms are safe.
Use the record to improve communication with a licensed clinician. The diagnostic conclusion comes from the clinician's integration of history, examination, established criteria, and any appropriately selected testing—not from a single score, scan, questionnaire, or phone interaction.