Can PCOS affect your bones? Experts warn of early bone loss risk

Can young women with PCOS have bone health issues? While PCOS is known for hormonal imbalance and metabolic complications, its potential link to bone mineral density is now gaining attention. Here's what science says.

PCOS (Polycystic Ovary Syndrome) is a common endocrine disorder affecting nearly 1 in 5 women of reproductive age in India. Traditionally associated with irregular periods, weight gain, acne, and fertility issues, recent evidence suggests that PCOS may also have implications for bone health — even in young women.

Bone Mineral Density (BMD) refers to the amount of mineral content in bones and is a key indicator of bone strength and risk for conditions like osteoporosis. While bone loss is typically a concern in post-menopausal women, hormonal disturbances in PCOS can start affecting BMD earlier than expected.

What Factors in PCOS Influence Bone Health?

The relationship between PCOS and BMD is complex and influenced by several variables:

Are Women With PCOS More at Risk?

Yes. Studies indicate that women with PCOS, particularly those without insulin resistance and with chronic menstrual irregularities, may have lower BMD compared to both healthy peers and obese women with PCOS.

According to a recent review in Endocrine Connections, lower oestrogen and absence of compensatory insulin-related bone stimulation could explain this trend in lean PCOS women. These women may not show symptoms until much later, but early bone loss could begin quietly in their 20s or 30s.

What Does the Latest Data Say?

A 2023 meta-analysis published in the Journal of Clinical Endocrinology & Metabolism reviewed over 2,000 women with PCOS and found that:

How Can Women With PCOS Protect Their Bones?

While the overall risk of osteoporosis may not be elevated in all women with PCOS, certain subgroups should be proactive. Experts suggest:

• Routine screening for BMD in  women with PCOS who have irregular periods and no insulin resistance.

  Should BMD Be Monitored in All PCOS Patients?

  Not necessarily. Routine BMD screening is not yet recommended for all women with PCOS. However, gynaecologists and endocrinologists now agree that individualised assessment is key. Young women who are lean, amenorrhoeic, and vitamin D deficient should especially consider a DEXA scan and early monitoring.

  PCOS affects much more than just reproductive health. While not all women with PCOS are at risk of low BMD, certain groups—especially lean, younger women with irregular periods—may be more vulnerable to early bone weakening. Addressing this risk early through hormonal management, diet, and exercise could be essential in preventing future complications like osteoporosis.

  (Disclaimer: This article is for informational purposes only and should not be considered a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for personalised guidance regarding PCOS or bone health.)