Do I have PCOS? A self-check guide

There's no reliable at-home quiz that can diagnose PCOS, but you can get a useful sense of whether it's worth a conversation with your provider by reviewing the same three criteria doctors use, known as the Rotterdam criteria.

The three signs doctors look for

A PCOS diagnosis generally requires at least two of the following three features, along with ruling out other causes:

• Irregular or absent ovulation. This often shows up as cycles longer than 35 days, fewer than eight cycles a year, or unpredictable timing.
• Signs of higher androgen levels. This can include persistent acne (especially along the jawline or chest), excess hair growth on the face or body, or elevated testosterone on bloodwork.
• Polycystic-appearing ovaries on ultrasound, meaning a higher number of small follicles or increased ovarian volume, or an elevated AMH level as an accepted alternative marker.

RELATED: PCOS is now PMOS: What the new name means for fertility and metabolic health

What the research suggests

The Rotterdam criteria have been the international standard since 2003 and were refined in the 2023 International Evidence-based Guideline for PCOS, which also clarified that when both irregular ovulation and signs of higher androgens are present, ultrasound isn't even required for diagnosis. This same guideline emphasizes that other conditions, including thyroid disorders and elevated prolactin, must be excluded before a PCOS diagnosis is confirmed, since these can produce similar symptoms.

Practical takeaways

• Track your cycle length for a few months if you haven't already. Consistent cycles over 35 days or unpredictable timing are worth mentioning to a provider
• Note any persistent acne, unusual hair growth, or hair thinning, especially if it developed gradually rather than suddenly
• Ask your provider for bloodwork that includes testosterone, thyroid panel (TSH, free T3, free T4), and prolactin to rule out mimicking conditions
• Bring a symptom timeline to your appointment, including when things started, since PCOS often traces back to puberty
• Remember that meeting one criterion alone (like polycystic-appearing ovaries) is not enough for a diagnosis on its own

When to talk to your provider

If you recognize two or more of the three Rotterdam features, or you have irregular cycles along with signs like acne or excess hair growth, it's worth scheduling an appointment for a full evaluation rather than trying to self-diagnose.

Frequently asked questions on checking for PCOS

Can a single ultrasound diagnose PCOS? 

No, ultrasound findings are only one of three criteria and must be combined with clinical evaluation.

Can you have normal periods with PCOS? 

Yes, some women meet the other two criteria while still ovulating regularly, which is why symptom awareness matters even with a normal cycle.

A self-check can help you decide whether it's worth pursuing a formal evaluation, but only a healthcare provider can confirm a PCOS diagnosis.

A note from WeNatal on checking for PCOS

If your self-check points toward PCOS, our guide PCOS is now PMOS: What the new name means for fertility and metabolic health offers a helpful next step for understanding the condition more fully.