Migraine: Causes, Symptoms & Treatment
A specialized medical guide to understanding severe neurological headaches, trigeminovascular signaling changes, diagnostic evaluation, and effective management care.
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What Is a Migraine?
A migraine is a complex neurological condition causing intense, throbbing headaches, typically on one side of the head, along with a wide array of other disruptive sensory symptoms.
Unlike a standard tension headache, migraines can last hours to days and are frequently accompanied by nausea, extreme sensitivity to light and sound, and visual disturbances or auras — representing a leading global cause of disability and reduced quality of life that benefits from specialized clinical management.
Common Symptoms of Migraines
Do not ignore these physical signs associated with trigeminovascular and neurological aura activation:
Throbbing Head Pain
Intense, pulsating, or throbbing pain typically localized on one side of the head.
Nausea & Vomiting
Gastrointestinal upset, nausea, or vomiting accompanying acute headache attacks.
Sensory Hypersensitivity
Extreme sensitivity to light (photophobia), sound (phonophobia), and strong smells.
Visual Aura
Flashes of light, blind spots, shimmering zigzag patterns, or temporary vision loss preceding pain.
What Causes Migraines?
Migraine attacks are triggered by neurovascular instability, hormonal fluctuations, and environmental stressors:
- Trigeminovascular Activation: Release of inflammatory neuropeptides around cranial blood vessels and the trigeminal nerve.
- Hormonal Fluctuations: Oestrogen drops around menstruation, pregnancy, or oral contraceptive use.
- Sleep & Stress Disruptions: Sleep deprivation, irregular circadian rhythms, and sudden emotional stress or let-down.
- Dietary & Environmental Triggers: Aged cheeses, red wine, caffeine withdrawal, bright flickering lights, and strong perfumes.
Treatment Options & Management
Migraine management combines acute abortive therapy, daily preventive medications, and trigger avoidance:
Acute & Preventive Care
Triptans and pain-relief medications for acute attacks, alongside beta-blockers, anti-seizure drugs, or CGRP inhibitors for prevention.
Lifestyle & Complementary Care
Trigger diary tracking, stress management, consistent sleep schedules, and physiotherapy for co-existing cervical tension.
How Migraines Are Diagnosed
Our structured 4-tier clinical diagnostic protocol evaluates ICHD-3 criteria, cortical spreading depression aura phases, neurovascular imaging exclusion, and trigger pattern logging.
1. History & Aura Pattern Audit
Detailed screening of attack frequency, duration (4-72 hours), throbbing quality, and visual aura progression.
- Attack Duration Tracking: Confirming untreated episodes lasting between 4 and 72 hours (ICHD-3 standard).
- Unilateral Throbbing Quality: Documenting one-sided pulsating pain intensity exacerbated by routine physical activity.
- Visual Aura Progression: Screening for expanding Scintillating scotoma, zigzag lines, or temporary hemianopia.
- Sensory & Speech Aura Check: Inquiring about transient unilateral paresthesia or dysphasic speech disturbance.
- Nausea & Vomiting Association: Recording gastrointestinal intolerance and post-attack exhaustion.
- Photophobia & Phonophobia: Evaluating intolerance to normal ambient lighting and everyday sounds.
- Menstrual Cycle Correlation: Tracking predictable catamenial migraine spikes around female hormone drops.
- Sleep & Stress Trigger Audit: Identifying sleep deprivation, weekend let-down headaches, and acute emotional stress.
- Dietary & Chemical Triggers: Screening red wine, aged cheese, MSG, artificial sweeteners, and caffeine withdrawal.
- Family History of Migraines: Auditing maternal or paternal genetic predisposition to migraine disorders.
- Medication Overuse Evaluation: Tracking frequency of acute triptan or analgesic intake (>10-15 days/month).
- Visual Analog Scale (VAS): Recording peak attack pain intensity scores (0-10 scale).
- Baseline MIDAS / HIT-6 Score: Measuring Migraine Disability Assessment test score impact.
2. Red-Flag & Neurological Screen (SNOOP10)
Screening secondary headache red flags (SNOOP10 criteria) to rule out intracranial aneurysms, tumors, and bleeds.
- Systemic Symptoms & Fever (S): Screening fever, weight loss, malignancy history, or immunocompromised status.
- Neoplasm / Cancer History (N): Ruling out metastatic brain lesions in patients with prior malignancies.
- Neurological Deficits (O): Screening confusion, altered mental status, limb weakness, or asymmetry.
- Onset Sudden / Thunderclap (O): Screening explosive onset reaching peak intensity within seconds (subarachnoid hemorrhage).
- Older Age Onset (P - >50 yrs): Investigating new-onset headaches appearing after age 50 (temporal arteritis/mass).
- Pattern Change / Progressive (P): Noting progressive worsening of headache frequency or character over weeks.
- Positional Headache (P): Checking headaches worsening upon standing or lying flat (CSF leak/pressure).
- Precipitation by Valsalva / Exertion (P): Screening headaches triggered by coughing, sneezing, or heavy lifting.
- Papilledema Fundoscopic Check: Inspecting optic disc swelling indicating raised intracranial pressure.
- Complete Cranial Nerve Exam: Testing visual fields, extraocular movements, and facial sensation.
- Emergency Neuroimaging Triage: Immediate CT/MRI brain referral protocol for any positive SNOOP10 red flag.
3. Physical & Cranial Nerve Exam
Cranial nerve assessment, cervical spine screening (cervicogenic overlap), TMJ palpation, and allodynia testing.
- Cranial Nerve Examination (CN I-XII): Complete assessment ruling out focal intracranial nerve palsies.
- Cutaneous Allodynia Testing: Brushing cotton or light touch across scalp/face to measure central sensitization.
- Upper Cervical Spine Screening (C1-C3): Flexion-rotation test (FRT) ruling out co-existing cervicogenic headache.
- Temporomandibular Joint (TMJ) Palpation: Checking jaw clicking, clenching, and masseter muscle tension triggers.
- Temporal Artery Palpation: Assessing tenderness and pulse integrity in temporal arteries (giant cell arteritis).
- Suboccipital Muscle Trigger Points: Palpating deep neck muscles for referred head pain elicitation.
- Fundoscopic Examination: Visualizing retinal vessels and optic disc margins.
- Motor & Sensory Extremity Screen: Confirming normal coordination and strength across all limbs.
- Physical Baseline Record: Documenting allodynia thresholds and cranial exam findings for treatment tracking.
4. Neuroimaging & Preventive Care Roadmap
Brain MRI/MRA, triptan abortive protocol, CGRP monoclonal antibodies, and lifestyle trigger management.
- Brain MRI / MRA (Indications): Neuroimaging ordered when headaches are atypical, progress in frequency, or present with red flags.
- Acute Triptan / Gepant Protocol: Prescribing selective serotonin agonists (sumatriptan) or calcitonin gene-related peptide receptor antagonists.
- CGRP Monoclonal Antibodies: Monthly biologic injections preventing migraine attacks by blocking CGRP signaling pathways.
- Oral Preventive Medications: Utilizing beta-blockers, anti-seizure drugs (topiramate), or tricyclic antidepressants for high frequency.
- Botox Injections for Chronic Migraine: FDA-approved protocol injecting onabotulinumtoxinA across head and neck muscles every 12 weeks.
- Comprehensive Headache Diary: Patient tracking daily triggers, attack duration, medication use, and menstrual correlations.
- Lifestyle & Sleep Hygiene Guidance: Structured counseling on regular sleep schedules, hydration, and meal timing.
- Multi-Specialist Neurological Audit: Collaborative neurologist, pain specialist, and physical therapist care review.
- Digital Archiving: Secure cloud storage of headache logs, MIDAS scores, and MRI scans in patient portal.
- Final Clinical Clearance: Approving independent migraine management and scheduled preventive follow-up visits.
Meet Our Migraine Care Experts
Get guidance for migraine management, including recurring headache patterns, possible triggers, nausea, and sensitivity to light or sound. Our care approach focuses on understanding your symptoms, supporting appropriate clinical assessment, and exploring personalised treatment options to help manage migraines and everyday activities.
Ask Our Specialist
Migraine care planning may consider headache frequency and duration, associated nausea or sensory sensitivity, possible triggers, medication history, and warning signs that may require further medical evaluation. An individualised care plan can help guide suitable treatment options and ongoing symptom management.
Frequently Asked Questions
Clear answers to common clinical questions about migraines, causes, diagnosis, and medical care.