How Is PCOS/PMOS Diagnosed? What to Expect When Getting Tested

If you think you might have polycystic ovary syndrome, now known as polyendocrine metabolic ovarian syndrome (PCOS/PMOS), the time between noticing symptoms and getting answers can feel unsettling. A diagnosis can also come as a relief, because periods that never seemed predictable, breakouts that wouldn’t clear, or unexpected hair growth suddenly make sense.

At Fertility Specialists of Texas (FST), we know how much you may already be carrying, and our team will guide you through every step of testing with patience and care.

What Doctors Look For in a PCOS/PMOS Diagnosis – The Rotterdam Criteria

You may start hearing the name PMOS at your appointments. In 2026, the American Society for Reproductive Medicine (ASRM) endorsed polyendocrine metabolic ovarian syndrome as the new name, since the condition affects hormones and metabolism throughout the body, and the term “cysts” never told the full story.

Doctors still use the Rotterdam criteria to make a PCOS/PMOS diagnosis. According to the 2023 international PCOS guideline recommendations published by ASRM, adults need two of the following three signs, along with testing to rule out other conditions that can look similar.

Irregular or Absent Menstrual Cycles

Your doctor will ask about your periods early in your visit, because cycle patterns offer one of the clearest clues about ovulation. For adults, a cycle counts as irregular if it runs shorter than 21 days or longer than 35 days, if you have fewer than 8 periods a year, or if any single cycle stretches past 90 days.

Ovulation problems can also happen with periods that look regular. A progesterone blood test can confirm whether you’re ovulating when your doctor needs a clearer answer.

Follicle Count on Ultrasound

Your provider will count the small follicles in each ovary, the tiny sacs that hold developing eggs. When your provider uses a transvaginal ultrasound, 20 or more follicles in at least one ovary meets the adult threshold.

A higher follicle count on its own doesn’t add up to a PCOS/PMOS diagnosis, and it’s one piece of a larger picture. Adults can have an anti-Müllerian hormone (AMH) blood test in place of the ultrasound to assess follicle count.

Signs of Higher Androgen Levels

Androgens are hormones like testosterone, and your doctor will check for higher levels in two ways:

Excess hair growth points most clearly to higher androgens, while acne or hair thinning alone are less specific. If you take birth control pills, tell your doctor, since the pill can lower androgen levels in bloodwork and may need to be paused for at least three months before testing.

What PCOS/PMOS Testing Involves

Your PCOS/PMOS testing will follow a clear sequence, and our fertility testing team will explain each result as it comes in. Testing will include:

Several of these tests also appear in standard fertility testing for women, so if you’re also hoping to conceive, your results can help guide fertility planning at the same time.

How Is PCOS/PMOS Diagnosed and How Long Does Testing Take?

Your timeline will depend on which signs you have. If you already have irregular cycles and visible signs of higher androgens, your doctor can diagnose PCOS/PMOS once the rule-out bloodwork comes back, with no ultrasound or AMH test required.

If only one sign is clear, your doctor will add an ultrasound, AMH testing, or a follow-up visit before reaching a diagnosis. Adding those extra steps reflects a careful, thorough approach, and our team will stay in touch with you throughout the process.

What Happens After a PCOS/PMOS Diagnosis

A PCOS/PMOS diagnosis gives you and your doctor a starting point for a plan built around your goals. If you’re hoping to get pregnant soon, our PCOS/PMOS treatment options include ovulation medications like letrozole (Femara) or clomiphene citrate (Clomid), which can be paired with timed intercourse or intrauterine insemination (IUI).

If oral medications don’t lead to ovulation, your doctor may recommend injectable gonadotropins, and our team will monitor your response closely with bloodwork and ultrasound.

If pregnancy isn’t part of your plans right now, your care will focus on managing symptoms and supporting your overall health. Whenever family-building becomes part of your plans, our team will be ready to help.

Questions to Ask at Your First Appointment

A little preparation can help your first visit feel more productive and less stressful. Before your appointment, make a few notes about:

You can also ask your doctor which tests you’ll need, when results will be ready, and how a diagnosis would shape your treatment options.

Talk to FST’s Care Team

Finding out whether you have PCOS/PMOS can turn uncertainty into a clear next step, and you don’t have to take that step alone. Our team in Plano, Dallas, Southlake, Rockwall, and Lubbock will listen closely, answer your questions, and support you through every stage of testing and care.

Request an appointment to talk with our care team in person or virtually.