Medically reviewed by Dr Chandril Chugh,

Renowned Neurologist and American Trained Specialist

At some point in our lives, many of us have heard about Polycystic Ovary Syndrome (PCOS) and its impact on reproductive health. But did you know that PCOS may also be linked to an increased risk of cancer? In this article, we’ll delve into the connection between PCOS and cancer risk, shedding light on how this hormonal disorder could potentially affect your overall health.

PCOS affects millions of women in India and worldwide, disrupting their hormone levels and potentially leading to numerous complications. While PCOS is primarily known for causing irregular periods, infertility, and excessive hair growth, recent research has revealed a possible connection between this condition and certain types of cancer.

To understand this link, it’s essential to have a basic understanding of PCOS. Let’s explore what PCOS is and how it impacts the body.

What is PCOS?

PCOS, short for Polycystic Ovary Syndrome, is a hormonal disorder that affects many women worldwide. It is characterized by an imbalance of reproductive hormones that can lead to various health issues.

Women with PCOS often have enlarged ovaries with small cysts on the outer edges, hence the name. This condition can disrupt the regular menstrual cycle and impede the release of eggs from the ovaries. As a result, fertility problems may arise and make it challenging to conceive.

Additionally, PCOS can cause an overproduction of androgens, commonly known as male hormones. This can lead to symptoms such as excess hair growth, acne, and male-pattern baldness. Weight gain and insulin resistance are also commonly associated with PCOS.

Overall, PCOS is a complex condition that affects multiple aspects of a woman’s physical and emotional well-being. Understanding its underlying mechanisms is crucial in addressing its potential effects, including its connection to cancer risk.

The Impact of PCOS Hormonal Imbalance

The hormonal imbalances caused by PCOS can create a cascade of effects throughout the body. Elevated levels of androgens, insulin, and estrogen contribute to the development of various health problems.

  • Androgens: Higher levels of androgens can disrupt the natural hormonal balance in the body, leading to irregular menstrual periods and fertility issues.
  • Insulin: Insulin resistance is a common feature of PCOS. The body’s cells become less responsive to insulin, resulting in elevated blood sugar levels. This can increase the risk of developing type 2 diabetes.
  • Estrogen: The excessive amounts of estrogen produced by the ovaries in PCOS can disrupt the normal growth and shedding of the uterine lining, leading to irregular and heavy menstrual bleeding.

To fully comprehend the potential link between PCOS and cancer risk, it is essential to look into the research and explore how these hormonal imbalances influence the body’s biological processes

Common Symptoms of PCOS

Common Symptoms Explanation
Irregular menstrual periods PCOS disrupts the regular release of eggs, leading to irregular or absent periods.
Excess hair growth Elevated androgens can cause hirsutism, leading to growth of hair in unwanted areas like the face, lower abdomen, and back.
Acne Increased androgen levels stimulate the production of sebum, resulting in acne breakouts.
Weight gain Insulin resistance can cause weight gain and difficulty in losing weight.
Male-pattern baldness Elevated androgens can cause hair thinning and hair loss, similar to male-pattern baldness.

By addressing these symptoms and managing the underlying hormonal imbalances, women with PCOS can take proactive steps to improve their overall health and potentially decrease the risk of certain cancers.

Understanding the Link Between PCOS and Cancer

When it comes to PCOS, understanding its potential impact on our health is of utmost importance. Research and studies have extensively investigated the connection between PCOS and cancer, revealing some intriguing findings. Let’s explore the possible mechanisms by which PCOS can potentially increase the risk of developing certain types of cancer.

The hormonal imbalances associated with PCOS play a significant role in this link. Women with PCOS often have higher levels of estrogen, insulin, and androgens in their bodies. These hormone imbalances can promote cell growth and division, which may contribute to the development of cancerous cells.

Additionally, insulin resistance, a common feature of PCOS, can increase the levels of insulin-like growth factor 1 (IGF-1) in the body. Elevated IGF-1 levels have been associated with various cancers, including breast, ovarian, and endometrial cancer.

Furthermore, chronic inflammation, which is often observed in individuals with PCOS, is also a known factor in cancer development. Inflammation can cause DNA damage and promote the growth of cancer cells.

While the precise mechanisms underlying the PCOS-cancer link are still being studied, it is crucial to be aware of the potential risks. By understanding these connections, individuals with PCOS can take proactive steps to minimize their cancer risk and prioritize their overall health.

PCOS and Cancer

In the next section, we will delve deeper into the specific types of cancer associated with PCOS. By gaining a comprehensive understanding of these connections, we can equip ourselves with knowledge and empower individuals affected by PCOS to make informed decisions about their health and well-being.

Cancer Types Associated with PCOS (1)

Individuals with PCOS have been found to have a higher occurrence of certain types of cancer. Understanding these associations can help raise awareness about the importance of early detection and monitoring. Here, we explore the specific cancer types associated with PCOS and provide insights into the potential reasons behind these connections.

Ovarian Cancer

Ovarian cancer is one of the most concerning cancer types linked to PCOS. Studies have shown that women with PCOS have an increased risk of developing ovarian cancer compared to those without the condition. The hormonal imbalances and elevated levels of estrogen in PCOS may contribute to the development of ovarian cancer.

Endometrial Cancer (2)

Endometrial cancer, also known as uterine cancer, is another cancer type that has been found to have an association with PCOS. The imbalanced hormone levels, particularly increased estrogen levels, in PCOS can lead to thickening of the uterine lining, known as endometrial hyperplasia. Over time, this can increase the risk of developing endometrial cancer.

Breast Cancer

While the association between PCOS and breast cancer is still being studied, some research suggests a potential link. Elevated estrogen levels in PCOS can influence breast tissue and increase the risk of breast cancer. However, more research is needed to fully understand the relationship between PCOS and breast cancer.

Colon Cancer

Although less established than the associations with ovarian and endometrial cancer, studies have suggested a possible connection between PCOS and colon cancer. It is believed that the hormonal imbalances in PCOS may contribute to the development of colon cancer. Further research is necessary to clarify this association.

Cancer Types Associated with PCOS

Cancer Type Association with PCOS
Ovarian Cancer Increased risk observed in women with PCOS
Endometrial Cancer Increase in risk due to hormonal imbalances in PCOS
Breast Cancer Potential association, more research needed
Colon Cancer Possible link, further research required

Early detection and regular screenings play a vital role in diagnosing and treating cancer. It’s important for individuals with PCOS to be proactive about their health, undergo recommended screenings, and maintain a healthy lifestyle to minimize the potential risk of developing these cancer types.


In conclusion, understanding the link between PCOS and cancer risk is crucial for individuals affected by this condition. Through our exploration of this topic, we have seen that PCOS can potentially increase the risk of developing certain types of cancer.

Regular screenings play a vital role in the early detection and prevention of cancer. By staying proactive and scheduling routine check-ups with your healthcare provider, you can ensure that any abnormalities or potential cancer risks are identified and addressed promptly.

Additionally, making lifestyle modifications can significantly reduce the potential risk of developing cancer. Emphasizing a healthy diet, regular exercise, and maintaining a healthy weight are all essential factors in managing PCOS and minimizing cancer risk.

In summary, by staying vigilant and taking a proactive approach to managing PCOS, individuals can mitigate the potential risk of developing cancer. By prioritizing regular screenings and adopting a healthy lifestyle, you are taking important steps towards prioritizing your overall well-being and reducing the impact that PCOS may have on your health.


What is PCOS?

PCOS, or Polycystic Ovary Syndrome, is a hormonal disorder that affects women of reproductive age. It is characterized by imbalanced hormone levels, multiple cysts in the ovaries, and irregular menstrual cycles.

How does PCOS affect the body?

PCOS can have various effects on the body, including irregular or absent periods, excess androgen hormones leading to acne or facial hair growth, weight gain or difficulty losing weight, insulin resistance, and fertility issues.

Is there a link between PCOS and cancer?

Yes, studies have suggested a potential link between PCOS and an increased risk of certain types of cancer, such as endometrial (uterine) cancer, ovarian cancer, and breast cancer. However, more research is needed to establish a definitive connection.

How does PCOS increase the risk of cancer?

The exact mechanisms by which PCOS may increase cancer risk are still being explored. Some theories suggest that the hormonal imbalances and chronic inflammation associated with PCOS could contribute to the development of cancer cells.

Which types of cancer are associated with PCOS?

PCOS has been linked to an increased risk of endometrial (uterine) cancer due to the thickening of the uterine lining caused by hormone imbalances. It has also been associated with a higher likelihood of developing ovarian and breast cancer, although the risk increase is relatively modest.

How can I reduce my cancer risk if I have PCOS?

While there is no guaranteed way to prevent cancer, there are steps you can take to reduce your risk if you have PCOS. Regular screenings, such as Pap smears and mammograms, can help detect any abnormalities at an early stage. Maintaining a healthy weight, exercising regularly, and following a balanced diet can also contribute to overall cancer prevention.

Should I be concerned about cancer if I have PCOS?

It is important to be aware of the potential increased risk of certain cancers associated with PCOS. However, it is essential not to panic. By staying informed, adopting a healthy lifestyle, and discussing any concerns with your healthcare provider, you can take proactive steps to manage both PCOS and your potential cancer risk.



  2. Yin W, Falconer H, Yin L, Xu L, Ye W. Association Between Polycystic Ovary Syndrome and Cancer Risk. JAMA Oncol. 2019;5(1):106–107. doi:10.1001/jamaoncol.2018.5188