PCOS is a spectrum, not a single diagnosis
Polycystic ovary syndrome (PCOS) is a hormonal condition affecting roughly 1 in 10 people who menstruate. The name is misleading: not everyone with PCOS has cysts on their ovaries, and the cysts are not the main issue when they exist. The core picture is irregular ovulation paired with higher-than-typical androgen levels.
PCOS shows up differently in different bodies. Some people deal mainly with irregular cycles. Others struggle with skin and hair changes. Some face fertility challenges. Many have several of these together.
How clinicians diagnose it (Rotterdam criteria)
PCOS is usually diagnosed when at least two of these three are present, and other causes are ruled out:
Diagnostic features:
- Irregular or absent ovulation: cycles longer than 35 days, fewer than 8 cycles per year, or no period for several months.
- Signs of higher androgens: persistent acne, scalp hair thinning, new facial or body hair, or elevated androgen levels on bloodwork.
- Polycystic-appearing ovaries on ultrasound: many small follicles arranged around the ovary edge.
Insulin resistance is often part of the picture
Many (not all) people with PCOS have some degree of insulin resistance. The body produces more insulin to keep blood sugar normal, and high insulin can drive higher androgens, which feeds the cycle and skin issues.
This is why steady eating with protein and fiber, regular movement, and good sleep often improve PCOS symptoms. Not as a punishment, but because the body responds.
Common symptoms beyond the cycle
PCOS often shows up in places people do not connect to the ovaries. Knowing the wider picture helps.
Other common signs:
- Persistent acne on the jawline, chin, and back.
- Hair thinning on the scalp (female-pattern thinning).
- New or increased facial and body hair (hirsutism).
- Difficulty losing weight or unintended weight gain around the middle.
- Mood changes, anxiety, or depression.
- Skin tags, dark velvety patches on the neck or armpits (acanthosis nigricans).
- Difficulty conceiving.
Treatments that actually move the needle
Treatment depends on what bothers you most and whether you want pregnancy soon. Plans are usually layered, not single-shot.
Common evidence-based options:
- Lifestyle anchors: sleep, steady protein and fiber, daily movement, stress care.
- Hormonal contraception: regulates cycles, reduces androgens and acne.
- Metformin: for insulin resistance, can support cycles for some people.
- Spironolactone: reduces androgens, helps with acne and unwanted hair growth.
- Inositol supplements: some evidence for cycle and metabolic support; check with a clinician.
- Fertility care: letrozole or other ovulation induction when trying to conceive.
PCOS in the long run
PCOS is a lifelong condition, not a phase. Long-term, it raises the risk of type 2 diabetes, high blood pressure, sleep apnea, and endometrial cancer (because of irregular cycles and unopposed estrogen). Regular cycles, even if induced by medication, are protective.
None of that means PCOS is a sentence. With care, most people live well. The goal is partnership with a clinician across decades, not a one-time fix.
A note on body image
PCOS often comes with weight, skin, and hair changes that feel unfair. The condition is not your fault, and "just lose weight" is not a respectful or accurate treatment. A team that takes your symptoms seriously and treats the whole picture is the standard you can ask for.