• concept
PCOS
Polycystic ovary syndrome is common (roughly 1 in 10 women) and sits at the crossroads of hormones and metabolism. The evidence is strongest for what travels WITH it — insulin resistance, type-2 diabetes, cardiovascular risk, fatty liver, mood disorders. It is much weaker on causal direction: for several of these we can show a robust association while the best causal tests disagree about which way the arrow points.
9 well-supported · 0 disputed. This shows how settled each sub-question is, not whether PCOS is "good." Direction lives in each claim below.
The 11 claims about PCOS
Each keeps its own verdict — we never average them away.
PCOS increases mood disorder
Strong support
PCOS increases type 2 diabetes
Strong support
PCOS increases cardiovascular disease
Strong support
PCOS increases chronic inflammation
Strong support
PCOS increases homocysteine
Strong support
PCOS causes insulin resistance
Strong support
PCOS increases NAFLD
Leans support
PCOS worsens thyroid function
Leans support
PCOS increases ferritin
Leans support
PCOS is a insulin resistance
Contested
PCOS decreases gut microbiome diversity
Contested
Educational only, not medical advice. Hub descriptions are curated for honesty; see the methodology.