Understanding PCOS/PMOS and Fertility: What You Need to Know
Dr. Sofie Desforges-Bell, ND
C’est La Vie Wellness, Oakville + Mitchell
A Calm Retreat, Sebringville
Understanding PCOS/PMOS and Fertility: What You Need to Know
Polycystic Ovary Syndrome (PCOS), increasingly being referred to as Polyendocrine Metabolic Ovarian Syndrome (PMOS) to better reflect the complexity of the condition, is one of the most common hormonal disorders affecting women of reproductive age.
Here’s what we know about how it impacts fertility.
The Fertility Misconception
Many women with PCOS/PMOS believe that simply achieving ovulation is enough to conceive and carry a healthy pregnancy. Unfortunately, this is not the full picture. Research has consistently shown that miscarriage rates are significantly higher in women with PCOS/PMOS compared to the general population. This means that fertility management for PCOS/PMOS goes beyond just triggering ovulation, it requires comprehensive care and monitoring.
The Role of AMH in PCOS/PMOS
Women with PCOS/PMOS typically present with higher levels of Anti-Müllerian Hormone (AMH), which is often associated with a larger ovarian reserve. While this may initially seem like a positive sign for fertility, emerging research from 2025 is beginning to reveal more nuanced trends that clinicians need to be aware of when counseling patients.
Ultrasound and Diagnosis
Diagnosing PCOS/PMOS involves careful evaluation, and ultrasound plays an important role. When assessing the ovaries, clinicians should follow standardized protocols, which include:
Recording the last menstrual period or stage of cycle
Counting the total number of 2–9 mm follicles per ovary
Taking measurements in three dimensions (in cm) or calculating ovarian volume
Noting other ovarian features or pathology, including cysts, corpus lutea, and dominant follicles (≥10 mm), which should not be included in ovarian volume calculations
It is important to note that ultrasound alone is not always necessary for a PCOS/PMOS diagnosis, and thresholds for Polycystic Ovarian Morphology (PCOM) should be regularly revised as ultrasound technology advances. Age-specific cut-off values should also be considered.
Looking Ahead
The conversation around PCOS/PMOS and fertility is evolving rapidly. If you have questions or concerns about your fertility journey with PCOS/PMOS, it is strongly encouraged to speak with a knowledgeable healthcare provider who stays current with the latest research and guidelines.
Note: This blog post is intended for informational purposes only and does not constitute medical advice. Always consult with your healthcare provider for personalized guidance.
Stay fueled. Stay healthy. Perform at your best.
Dr. Sofie Desforges-Bell, ND
C’est La Vie Wellness | Oakville & Mitchell