What are the underlying causes of cystic acne in individuals with PCOS?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Cystic acne in people with polycystic ovary syndrome (PCOS) may be linked to underlying immune system changes and low levels of HDL ("good") cholesterol. Research suggests that inflammation and altered lipid profiles play a key role in why cystic acne is more severe and persistent in those with PCOS, beyond the well-known effects of elevated androgens.

Understanding what's driving your symptoms is the first step toward effective treatment. Because PCOS-related acne can stem from hormonal, immune, and metabolic factors all at once, self-diagnosing or guessing at causes often delays real relief. A free, instant, online symptom check can help you identify possible causes, understand how your symptoms connect, and guide your next steps—whether that's a conversation with your doctor or specific tests to request. It takes just a few minutes and could save you months of uncertainty.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Cystic acne is a severe form of acne that can occur in people with PCOS. According to research, one possible cause is changes in the immune system. Specifically, there might be a transformation in lymphocytes, which are a type of white blood cell that helps fight infections. This change could contribute to the development of cystic acne.

Another potential factor is low levels of HDL, which is often called 'good' cholesterol. HDL helps remove bad cholesterol from the bloodstream, and low levels might be associated with more severe forms of acne. While the exact relationship between HDL and cystic acne is not fully understood, it might play a role in how severe the acne becomes.

Understanding these underlying causes can help in managing and treating cystic acne in individuals with PCOS. If you're experiencing symptoms of cystic acne or other PCOS-related concerns, you can get personalized insights by taking a free AI symptom checker assessment to better understand your condition. However, more research is needed to fully understand all the factors involved.

(References)

Puhvel SM, Amirian D, Weintraub J, & Reisner RM. (1977). Lymphocyte transformation in subjects with nodulo cystic .... The British journal of dermatology, 143951.
Vergani C, Finzi AF, Pigatto PD, Vigotti G, Negri M, & Altomare GF. (1982). Low levels of HDL in severe cystic acne. The New England journal of medicine, 6214714.
Stern RS. (1992). The prevalence of acne on the basis of physical examination. Journal of the American Academy of Dermatology, 1535079.

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