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diagram of some of the common symptoms that PCOS and autoimmune diseases share

Is PCOS an Autoimmune Disease?

Written by: Sarah Musleh, MD | Endocrinologist at Anzara Health

Published: 04-08-2024

Concept polycystic ovary syndrome, PCOS. Paper art, awareness of PCOS, image of the female reproductive system

Despite autoimmune diseases garnering significant attention in the medical community due to their complex nature and impact on patient’s well-being. The debate is still ongoing on whether PCOS is an autoimmune disease.

This stands in stark contrast to conditions like rheumatoid arthritis and type 1 diabetes, which are widely recognized as autoimmune diseases.

In this article, I’ll explore the relationship between PCOS and autoimmune diseases from an endocrinologist’s perspective, shedding light on why PCOS is not typically considered an autoimmune condition.

What is PCOS (Polycystic Ovarian Syndrome)?

PCOS is a hormonal disorder that affects people with ovaries, often leading to irregular menstrual cycles, cysts on the ovaries, and symptoms such as acne, hirsutism (excess hair growth), and weight gain.

While the exact cause of PCOS remains unknown, it is believed to involve a combination of genetic, environmental, and hormonal factors.

Women of reproductive age are primarily affected by PCOS, with estimates suggesting that up to 10% of this population may have the condition.

What are Autoimmune Diseases?

Autoimmune diseases occur when the body’s immune system mistakenly attacks its tissues, leading to inflammation and tissue damage.

Examples include rheumatoid arthritis, lupus, and multiple sclerosis.

In autoimmune diseases, the immune system fails to recognize certain cells or tissues as “self,” leading to an immune response against them.

Potential Causes of Autoimmune Diseases

The causes of autoimmune diseases remain elusive, with researchers continuing to investigate several potential factors that may lead to their development.

While the exact cause is not yet fully understood, several theories have emerged trying to understand the complex nature of these disorders.

Some potential causes of autoimmune diseases include:

  • Environmental Triggers: Substances such as endocrine-disrupting chemicals, cigarette smoke, air pollution (smog), pesticides, and pollutants may trigger immune system dysfunction in susceptible individuals.
  • Infectious Agents: Viruses, bacteria, sexually transmitted diseases, and other microbes that inhabit our bodies have been proposed as potential triggers for autoimmune responses.
  • Genetic Predisposition: Genetic factors play a significant role in autoimmune diseases, with certain genetic variations increasing susceptibility to these conditions.
    It’s not uncommon for autoimmune disorders to cluster within families, indicating a genetic component to their development.

These factors often interact in complex ways, leading to the development and progression of autoimmune diseases.

While much remains to be discovered, understanding these potential underlying factors is crucial for improving autoimmune disorders’ diagnosis, treatment, and prevention strategies.

Commonalities Between PCOS and Autoimmune Diseases

New research has brought forward evidence of a potential link between Polycystic Ovary Syndrome (PCOS) and autoimmune diseases, prompting questions about whether PCOS itself is an autoimmune disorder.

One autoimmune condition that has been frequently observed in women with PCOS is Hashimoto’s thyroiditis, a type of autoimmune thyroid disease characterized by chronic inflammation of the thyroid gland.

Studies suggest that Hashimoto’s thyroiditis is three times more prevalent in women with PCOS compared to those without the condition, underscoring the potential overlap between PCOS and autoimmune disorders.

The relationship between PCOS and autoimmune diseases extends beyond thyroid disorders.

PCOS shares potential causes with autoimmune diseases:

  • Family genes: Certain genetic variations and familial clustering of PCOS cases suggest a genetic predisposition akin to autoimmune diseases.
  • Hormonal imbalances: Elevated androgen levels and low progesterone levels in PCOS are paralleled by hormonal dysregulation seen in autoimmune diseases.
  • Inflammation: Pro-inflammatory responses and increased androgen levels observed in PCOS mirror inflammatory processes implicated in autoimmune disease development.
  • Insulin resistance: Insulin resistance, a hallmark of PCOS, shares associations with autoimmune disorders, particularly in cases of Type B insulin resistance.
  • Environmental factors: Factors like obesity and dietary influences contribute to both PCOS and autoimmune diseases.

Is PCOS an Autoimmune Disease?

PCOS is not typically classified as an autoimmune condition despite sharing some characteristics with autoimmune diseases, such as inflammation and immune system involvement.

Unlike autoimmune diseases, where the immune system attacks specific tissues or organs, PCOS is primarily characterized by hormonal imbalances and metabolic disturbances.

Additionally, while autoimmune diseases often have identifiable biomarkers, PCOS lacks specific diagnostic criteria and is diagnosed based on a combination of symptoms and laboratory findings.

Does PCOS Weaken the Immune System?

While PCOS is not considered to weaken the immune system directly, some aspects of the condition may indirectly impact immune function.

It’s observed that women with PCOS may have chronic low-grade inflammation, which is thought to contribute to the development of insulin resistance, metabolic dysfunction, and cardiovascular risk factors associated with the condition.

This chronic inflammation could affect immune function, as the immune system may become dysregulated in response to ongoing inflammatory processes.

Additionally, hormonal imbalances seen in PCOS, such as elevated levels of androgens (male hormones) and insulin resistance, may indirectly affect immune function.

For example, insulin resistance has been linked to immune system dysregulation in some contexts.

However, it’s essential to note that the specific effects of PCOS on immune function are still being studied, and individual experiences may vary.

General Guidelines PCOS Treatment Guidelines

Treatment for PCOS aims to manage symptoms and reduce the risk of long-term complications.

This may include lifestyle modifications such as dietary changes, regular exercise, weight management, and medications to regulate menstrual cycles, reduce androgen levels, and improve insulin sensitivity.

In some cases, fertility treatments may be necessary for women trying to conceive.

Lifestyle Adjustments for Managing PCOS Symptoms

In addition to medical treatment, lifestyle adjustments can play a crucial role in managing PCOS symptoms.

These may include maintaining a balanced diet rich in fruits, vegetables, lean proteins, and whole grains while limiting processed foods and added sugars.

Regular physical activity can help improve insulin sensitivity and promote weight loss, which can alleviate symptoms of PCOS.

Stress management techniques such as mindfulness, meditation, and relaxation exercises may also be beneficial in reducing stress-related symptoms.

Risks of Leaving PCOS Untreated

Not treating PCOS can create several risks to your health and well-being.

Some potential consequences of untreated PCOS include:

  • Infertility: PCOS is a common cause of infertility due to irregular ovulation or lack of ovulation. Without intervention, women with PCOS may struggle to conceive.
  • Metabolic complications: PCOS is often associated with insulin resistance, which can lead to type 2 diabetes if left untreated. Insulin resistance also increases the risk of developing metabolic syndrome, a cluster of conditions including high blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol or triglyceride levels, which increases the risk of heart disease and stroke.
  • Weight gain and obesity: Many women with PCOS experience weight gain or have difficulty losing weight. Untreated obesity can exacerbate symptoms of PCOS and increase the risk of developing metabolic complications.
  • Endometrial cancer: Women with PCOS are at an increased risk of developing endometrial hyperplasia, a thickening of the lining of the uterus, which can lead to endometrial cancer if left untreated.
  • Cardiovascular disease: PCOS is associated with an increased risk of cardiovascular disease, including heart attacks and strokes, particularly in women with insulin resistance and metabolic syndrome.
  • Psychological effects: PCOS can have a significant impact on a woman’s mental health, leading to symptoms such as depression, anxiety, and poor self-esteem, especially if symptoms are left unaddressed.


If you have PCOS, it’s important to receive regular medical care and to work with healthcare providers to manage symptoms and reduce the risk of complications. 

How Anzara Health Can Help You Manage PCOS

We specialize in providing personalized care and support for individuals with PCOS.

Our team of experienced endocrinologists, nutritionists, and wellness coaches work collaboratively to develop customized treatment plans tailored to each patient’s unique needs.

From comprehensive medical evaluations to lifestyle interventions and ongoing support, we are dedicated to helping you manage your PCOS effectively and improve your overall health and well-being.

We are committed to empowering you to take control of your health and thrive despite the challenges of PCOS.


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