When most healthcare providers think of polycystic ovarian syndrome (PCOS), they focus on the classic insulin-resistant form. This makes sense; it’s the most common presentation and the one emphasized in medical training. But what happens when a woman comes in with irregular periods and signs of hormone imbalance, yet her blood sugar markers are completely normal?
Enter adrenal PCOS, a different form of PCOS without insulin resistance that affects up to 50% of women with the condition. Despite being incredibly common, this type of PCOS hormone imbalance often goes undiagnosed, leaving women without answers or appropriate treatment.
Today, I’ll walk you through a real patient case that illustrates how adrenal androgen excess can drive PCOS symptoms, and why understanding this distinction matters for your health.
What Defines PCOS?
The Rotterdam criteria, established in 2003 and updated in recent international guidelines, define PCOS by the presence of at least two of three features:
- Irregular or absent ovulation (oligo/anovulation)
- Clinical or biochemical signs of androgen excess (elevated testosterone, acne, facial hair, or male-pattern hair loss)
- Polycystic ovarian morphology on ultrasound (≥20 antral follicles per ovary or ovarian volume >10 mL)
In classic PCOS, these symptoms typically occur alongside insulin resistance, elevated blood sugar markers, and often weight gain or difficulty losing weight. The excess androgens primarily come from the ovaries, driven by insulin’s stimulating effects.
What Makes Adrenal PCOS Different?
Adrenal PCOS represents cases where androgen excess originates predominantly from the adrenal glands rather than the ovaries. Research shows that 25-50% of women with PCOS demonstrate elevated adrenal androgen levels, particularly DHEA-S (dehydroepiandrosterone sulfate).
Women with adrenal androgen excess typically present with:
- Irregular menstrual cycles
- Normal glucose and insulin levels
- Elevated adrenal hormones (DHEA-S, androstenedione, cortisol)
- Symptoms often triggered or worsened by stress
- Normal or low body weight (adrenal androgen excess is more common in lean women with PCOS)
Let’s take a look at a real patient
Note: Patient name and some details have been changed to protect privacy while maintaining the clinical accuracy of the case.
Let me share the story of a patient called Sarah. She was a 33-year-old patient who came to my practice frustrated by years of irregular periods and conflicting medical advice.
Sarah’s Symptoms
Sarah experienced unpredictable menstrual cycles that could stretch anywhere from 35 to 90 days. She occasionally dealt with adult acne and noticed some unwanted facial hair, but her weight was stable and she had no concerns about blood sugar. Multiple doctors had suggested she “just use birth control” without investigating the underlying cause.
The Lab Results That Told a Different Story
Normal Glucose/Insulin Markers:
- Fasting glucose: 87 mg/dL (normal: 70-99)
- Hemoglobin A1C: 5.1% (normal: <5.7%)
- Fasting insulin: 4-4.9 uIU/mL (normal: 2.6-24.9)
- C-peptide: 0.94 ng/mL (normal: 0.9-7.1)
These results clearly ruled out insulin resistance as the driving factor.
Elevated Adrenal Androgen Markers:
- Androstenedione: 274 ng/dL (normal: 85-275) – high normal
- DHEA-S: 255 mcg/dL (normal for her age: 65-380)
- Total testosterone: 37 ng/dL (normal: 8-60)
- Free testosterone: 3.9 pg/mL (normal: 0.0-4.2) – high normal
- ACTH: 54 pg/mL (normal: 7.2-50) – elevated
- Morning cortisol: ~25 mcg/dL (normal: 6.2-19.4) – elevated
Additional Findings:
- AMH: 3.93 ng/mL (elevated, consistent with PCOS)
- LH:FSH ratio: approximately 2:1 (typical PCOS pattern)
- Leptin: 4.5 ng/mL (low-normal)
- Stool zonulin: 258 ng/g (elevated, indicating increased intestinal permeability)
What This Pattern Reveals
Sarah’s labs painted a clear picture of adrenal-driven PCOS:
- No evidence of insulin resistance
- Elevated adrenal-related hormones (ACTH, cortisol)
- Adrenal androgen excess without ovarian involvement
- Signs of HPA (hypothalamic-pituitary-adrenal) axis dysfunction
The elevated zonulin also suggested that chronic stress and gut health issues might be contributing to her hormonal imbalance, a common finding in stress-driven PCOS cases.
The Science Behind Adrenal PCOS
Research reveals that adrenal androgen excess in PCOS involves complex interactions between stress, the HPA axis, and hormone production. Studies show that:
- Up to 32% of women with PCOS have elevated DHEA-S levels, indicating adrenal involvement
- Lean women with PCOS are more likely to have adrenal androgen excess compared to those with higher BMI
- Chronic stress can dysregulate the HPA axis, leading to increased cortisol and ACTH, which stimulate adrenal androgen production
- Intestinal permeability may contribute to systemic inflammation, potentially worsening hormonal imbalances
Treatment and Addressing the Root Cause
Unlike classic PCOS, which focuses heavily on insulin sensitivity, treating adrenal PCOS requires a different strategy that addresses the underlying stress and inflammatory factors driving the condition.
Stress Management
The cornerstone of treatment involves supporting the HPA axis through comprehensive stress management approaches. This includes incorporating adaptogenic herbs like ashwagandha, rhodiola, and holy basil, which help modulate the body’s stress response and can reduce elevated cortisol levels over time.
Equally important are stress reduction techniques such as meditation, yoga, and breathwork, which have been shown to directly impact HPA axis function.
Sleep optimization becomes crucial as well, since proper sleep patterns help restore natural cortisol rhythms and support overall adrenal health. Lifestyle modifications to reduce chronic stressors, whether they’re physical, emotional, or environmental, form the foundation of successful treatment.
Gut Health
Gut health restoration represents another critical component of adrenal PCOS treatment, particularly given the elevated zonulin levels we often see in these patients. Healing intestinal permeability requires targeted supplements and dietary changes that reduce inflammation and support the intestinal barrier.
Supporting the gut microbiome through high-quality probiotics and prebiotic-rich foods helps create a healthier internal environment that can positively influence hormone production and metabolism. Reducing inflammatory foods that may exacerbate hormonal imbalances becomes essential, as chronic inflammation can perpetuate both gut dysfunction and adrenal stress.
Nutrition
Nutritional support takes on a specialized focus in adrenal PCOS cases. An anti-inflammatory diet rich in omega-3 fatty acids and antioxidants helps reduce the systemic inflammation that often accompanies this condition. While insulin resistance isn’t the primary driver, blood sugar stabilization remains important to prevent additional stress on the adrenal glands. Targeted nutrients like magnesium, B vitamins, and vitamin C provide specific support for adrenal function and help the body better cope with stress. The goal isn’t just symptom management but creating optimal conditions for hormonal balance and overall well-being.
Hormonal Balance
Hormone balance strategies in adrenal PCOS often include natural progesterone support during the luteal phase to help counteract excess androgens and support regular ovulation. Herbal medicines like spearmint tea and saw palmetto offer mild anti-androgenic effects that can help manage symptoms like acne and unwanted hair growth. Supporting liver function becomes crucial as well, since the liver plays a key role in metabolizing and clearing excess hormones from the system. This comprehensive approach addresses not just the symptoms but the underlying mechanisms driving adrenal androgen excess.
Frequently Asked Questions About Adrenal PCOS
How common is adrenal PCOS?
Research suggests that 25-50% of women with PCOS have some degree of adrenal androgen excess, making it far more common than many realize.
Can you have both insulin resistance and adrenal PCOS?
Yes, some women have mixed presentations. However, identifying the primary driver helps determine the most effective treatment approach.
Will adrenal PCOS affect fertility?
Adrenal androgen excess can impact ovulation and fertility, but it often responds well to stress management and targeted treatment.
How is adrenal PCOS diagnosed?
Diagnosis requires comprehensive hormone testing, including DHEA-S, androstenedione, cortisol, ACTH, and insulin markers to differentiate from classic PCOS.
The Bottom Line: Why Recognition Matters
Adrenal PCOS without insulin resistance represents a significant portion of PCOS cases that may be overlooked by conventional approaches. When women like Sarah present with irregular cycles and normal metabolic markers, it’s crucial to look beyond insulin resistance and consider adrenal involvement.
Understanding the distinction between classic and adrenal PCOS allows for more targeted, effective treatment. Instead of focusing solely on blood sugar management, we can address the underlying stress and inflammatory factors driving the condition.
If you’re experiencing irregular periods, signs of androgen excess, but have normal blood sugar markers, consider asking your healthcare provider about comprehensive adrenal testing. Sometimes the answer lies not in what’s high, but in understanding where those elevated hormones are coming from.
References:
- Goodman NF, et al. American Association of Clinical Endocrinologists, American College of Endocrinology, and Androgen Excess and PCOS Society Disease State Clinical Review. Endocr Pract. 2015;21(11):1291-300.
- Kumar A, et al. Adrenal androgen excess in the polycystic ovary syndrome: sensitivity and responsivity of the hypothalamic-pituitary-adrenal axis. J Clin Endocrinol Metab. 1998;83(7):2317-23.
- Teede HJ, et al. Recommendations from the international evidence-based guideline for the assessment and management of polycystic ovary syndrome. Hum Reprod. 2018;33(9):1602-1618.