migraine MRI what to expect

Overview

Migraine is a common brain condition that causes intense, throbbing headaches often on one side of the head. An MRI (magnetic resonance imaging) is a scan that uses strong magnets and radio waves to take detailed pictures of your brain. Sometimes your doctor may recommend an MRI to rule out other causes of your headaches or to get a closer look at your brain structure.

MRI is a very common test for people with certain types of headaches to make sure there is no other problem causing the symptoms.

Anyone with migraines may be offered an MRI if their headaches have unusual features, change in pattern, or if the doctor suspects another condition.

Symptoms

Common symptoms

• Throbbing or pulsing pain, often on one side of the head
• Nausea or vomiting
• Sensitivity to light, sound, or smells
• Seeing flashing lights, zigzags, or blind spots (called aura)

Symptoms in children

• Pale skin, dizziness, or tummy aches
• Loss of appetite
• Difficulty concentrating or irritability

Symptoms in older adults

• Visual disturbances such as temporary vision loss
• Pain that is less severe but lasts longer
• Increased sensitivity to motion or balance problems

Causes

Main causes

• The exact cause of migraine is not fully understood, but it involves changes in brain activity and chemicals like serotonin.
• Genetics likely play a role — migraines often run in families.

Risk factors

• Family history of migraine
• Being female (hormonal changes can trigger migraines)
• Stress, lack of sleep, or skipping meals
• Certain foods (aged cheese, processed meats, alcohol)
• Changes in weather or barometric pressure

When to see a doctor

See a doctor urgently if:

• If you have a sudden, severe headache (thunderclap headache) — call emergency services.
• If you have a headache with fever, stiff neck, or confusion — seek urgent care.

Book a routine appointment if:

• If you have frequent or disabling migraines that affect your daily life.
• If your headache pattern changes or you need help finding effective treatment.

Diagnosis

Migraines are diagnosed mainly based on your symptoms and medical history. An MRI may be used to rule out other causes such as a tumour, stroke, or infection.

Tests that may be done

• Neurological exam (checking nerves, reflexes, and coordination)
• MRI of the brain (detailed images of brain structure)
• Sometimes a CT scan (uses X-rays) if MRI is not suitable

What to expect at your appointment

During an MRI, you lie on a table that slides into a tunnel-shaped machine. You'll be asked to stay very still. The machine makes loud tapping noises — you'll be given earplugs or headphones. You can speak to the technologist through an intercom. The scan is painless and usually takes 15 to 45 minutes.

Treatment

Treatment for migraines includes lifestyle changes, avoiding triggers, and if needed, medication to stop attacks or prevent them.

Self-care at home

• Rest in a dark, quiet room when you feel a migraine coming on
• Apply a cold or warm compress to your head or neck
• Stay hydrated and eat regular meals
• Avoid known triggers like strong smells, bright lights, or certain foods

Medical treatments

Your doctor may recommend over‑the‑counter pain relievers or prescription treatments that can stop a migraine once it starts or help prevent future attacks. Always follow your doctor's advice about how to use these medicines safely.

Living with this condition

Living with migraines often means learning your triggers and managing attacks when they happen. Keeping a headache diary can help you spot patterns.

Lifestyle tips

• Keep a headache diary to track triggers, symptoms, and treatments
• Try to go to bed and wake up at the same time every day
• Manage stress with relaxation exercises, meditation, or talking to a therapist

Diet and exercise

A balanced diet and regular, moderate exercise can help reduce migraine frequency. Avoid skipping meals, and stay hydrated. Gentle activities like walking or yoga are often beneficial.

Mental health and emotional wellbeing

Chronic migraines can cause anxiety and depression because of the unpredictable pain and disruption to daily life. It's important to seek support if you feel overwhelmed.

Prevention

You can't always prevent migraines, but avoiding triggers and maintaining a healthy lifestyle can reduce how often they happen. Some people benefit from preventive medication prescribed by their doctor.

Complications

If left untreated

• Chronic daily headaches (headaches 15 or more days a month)
• Medication overuse headaches (from taking pain relievers too often)
• Increased risk of depression and anxiety

Long-term outlook

With the right treatment plan and support, most people with migraines can manage their symptoms and lead a full, active life. It may take time to find what works best for you, but many effective options are available.

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