PCOS and Insulin Resistance: The Connection Few Women Are Told About

Most women with PCOS (polycystic ovary syndrome) are told it's a reproductive condition — something about irregular periods and ovarian cysts. That's true, but it's an incomplete picture. For a large share of women with PCOS, the condition is driven — or at least significantly worsened — by something happening far from the ovaries: how the body handles insulin.

Understanding that connection changes what treatment actually looks like, and it's often the missing piece for women who've tried the standard advice and still aren't seeing results.

How the Two Conditions Feed Each Other

Insulin resistance means your cells don't respond normally to insulin, so your pancreas produces more of it to compensate. Elevated insulin levels do more than affect blood sugar — they also signal the ovaries to produce more androgens (male-pattern hormones like testosterone). Higher androgens, in turn, disrupt ovulation and drive many of the classic PCOS symptoms.

It's a loop: insulin resistance raises androgens, elevated androgens make insulin resistance worse, and the cycle reinforces itself. Research suggests the majority of women with PCOS have some degree of insulin resistance — including many who are not overweight, which is one of the most commonly missed parts of this picture.

Signs That Insulin Resistance May Be Part of Your PCOS

None of these symptoms alone confirms PCOS or insulin resistance — but together, and especially with a family history of type 2 diabetes, they're a strong reason to test rather than guess.

What a Complete Evaluation Looks At

A standard PCOS diagnosis often relies on symptoms and an ultrasound alone. A more complete functional medicine evaluation adds the metabolic side of the picture, typically including:

• Fasting insulin and fasting glucose — standard glucose alone frequently misses early insulin resistance, since blood sugar can stay normal for years while insulin quietly climbs
• HbA1c — a three-month average of blood sugar control
• Total and free testosterone, DHEA-S, and LH/FSH ratio — the hormone markers that confirm the androgen and ovulatory piece of PCOS
• Lipid panel — insulin resistance often travels with changes in cholesterol and triglycerides

Reading fasting insulin alongside glucose is often the single most revealing addition — it's what catches insulin resistance years before it would show up as prediabetes on a standard panel.

What Treatment Can Actually Address

Because PCOS and insulin resistance reinforce each other, treating the metabolic side often improves the reproductive and dermatologic symptoms too — not just blood sugar. Depending on your labs and goals, that can include targeted nutrition and lifestyle changes, insulin-sensitizing medication, and in some cases medical weight loss support when insulin resistance and weight are closely intertwined. Hormone-focused support may also be appropriate when androgen levels are significantly elevated.

This is also why PCOS care benefits from a functional medicine approach — the reproductive symptoms and the metabolic symptoms are two expressions of the same underlying pattern, and treating only one side rarely resolves the other.

What To Do Next

If you have PCOS and feel like the standard advice hasn't gotten you very far, ask specifically about insulin and androgen testing — not just an ultrasound. Abbott Health & Wellness in Salina, Utah offers complete PCOS and metabolic evaluations for patients across Sevier County and Central Utah, including Richfield, Manti, and Gunnison.

This article is for educational purposes only and does not constitute medical advice. Please consult a qualified physician before starting any new treatment. — Justin Abbott, D.O., Abbott Health & Wellness, 45 North State Street, Salina, UT 84654.