What is the difference between having polycystic ovaries and having Polycystic Ovarian Syndrome (PCOS)?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Polycystic ovaries and Polycystic Ovarian Syndrome (PCOS) are not the same. Having polycystic ovaries simply means multiple small cysts are present on the ovaries. PCOS, however, is a hormonal disorder that includes these cysts along with symptoms like irregular periods, acne, weight gain, and excess hair growth caused by hormone imbalances.

If you're noticing symptoms that concern you, understanding what's happening in your body is the first step toward getting the right care. A free, instant, online symptom check can help you identify possible causes, learn which conditions match your symptoms, and guide you on what to do next—all in just a few minutes, with no cost or commitment.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Discover if it’s PCOS or polycystic ovaries Learn what’s causing your ovarian cysts See if your symptoms need prompt care Find OTC options for symptom relief Find a doctor for PCOS care Understand medically valid home remedies for PCOS Find out likely causes of irregular periods

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Explanation

Polycystic ovaries and Polycystic Ovarian Syndrome (PCOS) are related but not the same. Polycystic ovaries means that the ovaries have many cysts on them. This can be seen during an ultrasound. However, having polycystic ovaries alone does not mean that a person has PCOS. Some people have polycystic ovaries without any other symptoms.

PCOS is a condition that includes having polycystic ovaries along with other symptoms. These symptoms can include irregular periods, an imbalance of certain hormones, and sometimes extra hair growth or acne. PCOS can affect a person's overall health and can sometimes make it harder to have children.

In summary, while polycystic ovaries refer to a specific appearance of the ovaries, PCOS is a more complex condition that involves a combination of symptoms and health issues. Not everyone with polycystic ovaries will have PCOS, but most people with PCOS will have polycystic ovaries. If you're experiencing symptoms like irregular periods, hormonal imbalances, or unusual hair growth, you can use a free symptom checker to better understand what might be affecting your health and when to seek medical care.

(References)

Hart R, Hickey M, & Franks S. (2004). Definitions, prevalence and symptoms of polycystic ovaries .... Best practice & research. Clinical obstetrics & gynaecology, 15380140.
Catteau-Jonard S, Bancquart J, Poncelet E, Lefebvre-Maunoury C, Robin G, & Dewailly D. (2012). normal variant or silent polycystic ovary syndrome?. Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 22648908.
Dewailly D, Gronier H, Poncelet E, Robin G, Leroy M, Pigny P, et al. (2011). Diagnosis of polycystic ovary syndrome (PCOS). Human reproduction (Oxford, England), 21926054.

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