Chronic and Episodic Migraine | What’s the Difference?

Migraines aren’t “just bad headaches”. For many people they’re intense and disabling episodes that can interfere with work and daily life. But here’s something many people don’t realise—all migraines aren’t the same. One of the key differences is whether they’re chronic or episodic.

Understanding the difference between chronic and episodic migraine is important because it can affect your diagnosis, treatment plan, and even how you manage your lifestyle. Let’s break it down in a simpler way.

What is Migraine?

Migraine is a neurological condition that causes moderate to severe head pain, often throbbing and on one side of the head.

It is usually accompanied by other symptoms like nausea, vomiting, sensitivity to light (photophobia), and sounds (phonophobia). For some people it can also be accompanied by  visual disturbances (aura).

Migraines can last anywhere from a few hours to several days which severely affects daily life. It can occur with or without aura (warning signs).

Migraines can be chronic or episodic. The main difference between chronic and episodic migraine is their frequency.

Learn more about migraine

What is Chronic Migraine?

Chronic migraine is characterised by headaches on 15 or more days per month for 3 months or more and on at least 8 of those days you have migraine features (like nausea, vomiting, and light sensitivity).

Chronic migraine headaches can be more severe and last longer than episodic migraine. They often require more aggressive or preventive treatment.

What is Episodic Migraine?

Episodic migraine refers to having fewer than 15 headache days per month. Most people with migraine fall into this category.

These attacks can still be debilitating even if they occur less frequently.

Common triggers for episodic migraine include stress, menstruation, and weather changes.

Key Differences Between Chronic and Episodic Migraine

Features Episodic Migraine Chronic Migraine
Headache days per month Fewer than 15 days 15 or more days
Migraine-type days per month Varies (not specifically defined) At least 8 days with migraine features
Duration Typically less than 24 hours Can be more than 24 hours
Impact on daily life Can disrupt activities occasionally but allows for longer migraine-free periods Often more significantly affects work, social life, and daily routines
Typical treatment approach Mainly acute (abortive) treatments taken during attack Often requires preventive medications along with acute treatments
Risk of progression Can become chronic if frequency increases Can revert to episodic with effective treatment and lifestyle changes
Co-occurring conditions (like depression and anxiety) Possible Likely

Can Episodic Migraine Become Chronic?

Yes, episodic migraines can progress to chronic migraine if attacks become more frequent. This shift is known as migraine chronification

Why this happens is not fully understood but there are certain factors that can be possible contributors like overuse of migraine medications.

Some risk factors that may transform episodic migraine to chronic migraine include obesity, sleep difficulties like insomnia, depression, and anxiety.

The good news is: with proper treatment, lifestyle adjustments, and preventive strategies, it’s often possible to prevent this progression or even revert it—which means that chronic migraine can become episodic when treatment helps in reducing symptoms. The reduction in symptoms is known as remission.

How Migraines are Managed?

While the treatment for episodic and chronic migraine isn’t exactly the same— there are a few steps that can help no matter what type you have.

One of the most important things is identifying your triggers and avoiding them. For many people certain foods like aged cheese, processed meat, alcohol, lack of sleep, and stress can trigger an attack.

It also helps to keep a migraine diary. Writing down when your headaches happen, your symptoms, what you were doing before they occurred, can help your doctor to diagnose what type of migraine you have and find what works best for you

Making lifestyle changes like sticking to a regular sleep schedule, eating a healthy and balanced diet, and managing your stress can also make a big difference

Medications for Episodic and Chronic Migraines: 

Episodic migraine is often managed with over-the-counter (OTC) medications like ibuprofen, acetaminophen, and naproxen.

In some cases your doctor may also suggest prescription medicines.

If your migraine attacks start showing up more often and become more severe, they may also prescribe preventive medication to reduce their frequency as well as the intensity.

Chronic migraine treatment usually combines acute medications like triptans and dihydroergotamine for attacks in progress, along with preventive medications to lower the frequency, duration, and intensity of episodes.

The preventive medicines also known as migraine prophylaxis include anticonvulsants, antidepressants, beta-blockers and more. 

Final Thoughts:

No matter what type of migraine you have—they can be exhausting. And understanding which type you have is the first step towards proper management.

If you feel that your headaches are becoming more frequent, don’t wait until they take over your daily life. Speak to your doctor so they can find the cause of your headaches and offer a proper treatment plan for your condition.

The right treatment plan can help you take back control—and have more headache-free days.

Dr. Arsham Najeeb

Written by Dr Arsham Najeeb, MBBS

Get a doctor-approved Online Sick Note , valid across the EU and the UK , within minutes for just €27.99 — all from the comfort of your home!

Related Posts