Migraine and Autoimmune Diseases: What the Research Actually Shows

Many people with migraine notice they also live with other chronic conditions. This often leads to an important question:

Is migraine an autoimmune disease?

The short answer is no. Migraine is classified as a neurological disorder, not an autoimmune one. However, research shows that migraine and certain autoimmune diseases can occur together more often than expected. Scientists believe this overlap may come from shared biological pathways involving the immune system, not because migraine itself is an autoimmune attack.

Here’s what we actually know.

Migraine involves the immune system, but that doesn’t make it autoimmune

During a migraine attack, the brain releases inflammatory and immune-related signaling molecules such as cytokines. These chemicals influence pain pathways, blood vessels, and nerve sensitivity. Researchers often describe this as neuroinflammation, meaning immune activity within the nervous system [1][2].

But this is different from an autoimmune disease.

In autoimmune conditions, the immune system mistakenly attacks the body’s own tissues, like joints in rheumatoid arthritis or the thyroid gland in Hashimoto’s disease. Migraine does not show evidence of this kind of tissue-directed immune attack [1][2][8].

So while the immune system plays a role in migraine biology, migraine is still considered a neurological condition with immune involvement, not an autoimmune disorder.

Autoimmune diseases that appear more often in people with migraine

Although migraine is not autoimmune, studies show that some autoimmune diseases are more common among people with migraine.

Multiple Sclerosis (MS)

Research consistently finds that people with MS report migraine more often than those without MS [3]. The reason isn’t fully understood, but possible explanations include:

• Shared inflammatory signaling in the brain
• Changes in pain processing
• Medication or lifestyle factors related to chronic illness

This does not mean migraine causes MS or vice versa. It simply shows the two conditions overlap more than expected by chance.

 

Autoimmune Thyroid Disease

Several studies, including genetic research, have found associations between migraine and autoimmune thyroid conditions such as Hashimoto’s or Graves’ disease [4].

Thyroid hormones influence brain energy use, blood vessel regulation, and pain sensitivity. When thyroid function is disrupted, symptoms like fatigue, brain fog, and mood changes can overlap with migraine symptoms.

Treating thyroid disease does not “cure” migraine, but managing thyroid health may reduce overall symptom burden in people who have both conditions.

 

Lupus and Other Systemic Autoimmune Diseases

Migraine appears to be more common in people with systemic lupus erythematosus (SLE) compared to the general population [5]. Similar patterns have been observed with rheumatoid arthritis and some other autoimmune conditions [6].

Again, this reflects co-occurrence, not proof that one condition directly causes the other.

 

Why might migraine and autoimmune diseases overlap?

Researchers are still working on this, but several shared mechanisms are possible:

Neuroinflammation

Both migraine and autoimmune diseases involve immune signaling molecules that can affect nerves and pain pathways [1][2].

Genetic predisposition

Certain genetic traits linked to immune regulation may also influence how sensitive the brain is to migraine triggers [4].

Nervous system–immune system communication

The immune system and nervous system constantly interact. In some people, this communication may be more reactive or sensitive, increasing vulnerability to both migraine and immune-related conditions [2][8].

 

What this DOES NOT mean

It’s important to avoid common misunderstandings:

• Migraine is not classified as an autoimmune disease
• Most people with migraine do not have an autoimmune disorder
• Immune-suppressing treatments are not standard migraine therapies
• The presence of inflammation in migraine does not mean the immune system is attacking the brain

Experts stress the difference between immune involvement and autoimmunity [7][8].

 

When should someone with migraine talk to a doctor about autoimmune testing?

Having migraine alone is not a reason to screen for autoimmune disease. But it may be worth discussing further evaluation if migraine occurs alongside symptoms such as:

• Persistent joint swelling or stiffness
• Unexplained rashes
• Severe or unexplained digestive problems
• Ongoing extreme fatigue beyond typical migraine patterns
• Strong thyroid-related symptoms (major weight changes, cold intolerance, hair loss)

The goal isn’t to “find the cause” of migraine, but to identify treatable coexisting conditions that could be affecting overall health.

 

The bottom line

Migraine sits at the crossroads of the nervous system and immune system, which is why researchers see biological overlap with some autoimmune diseases. But current science is clear:

Migraine is a neurological disorder with immune involvement, not an autoimmune disease.

Understanding this distinction helps people avoid unnecessary fear, extreme diets, or unproven immune treatments, and instead focus on comprehensive migraine care based on evidence.

 

References

[1] Biscetti L, et al. Immune system involvement in headache pathogenesis. Journal of Neuroinflammation. 2021.
[2] Salahi S, et al. Immunologic aspects of migraine. Frontiers in Immunology. 2022.
[3] Ha WS, et al. Altered immunity in migraine: a scoping review. The Journal of Headache and Pain. 2024.
[4] Li R, et al. Genetic association between autoimmune hyperthyroidism and migraine. Frontiers in Neurology. 2024.