Tag: how long does PCOS diagnosis take UK

Getting diagnosed with PMOS (PCOS), should not take years. Yet many people are dismissed, told their symptoms are normal, or given the pill without being told what is driving their irregular periods, acne, excess hair growth or fertility concerns. PMOS is diagnosed using the Rotterdam criteria. This means you need to meet at least 2 out of 3 criteria: irregular or absent periods, signs of high androgens, and/or polycystic ovarian morphology on ultrasound or AMH testing. Other conditions, such as thyroid disorders and raised prolactin, should also be ruled out. This guide explains the tests used to diagnose PMOS, what the criteria mean, whether you need an ultrasound, and what to do if you are not getting clear answers. Quick facts: What tests are used to diagnose PMOS (PCOS)? There is no single test that can diagnose polyendocrine metabolic ovarian syndrome, or PMOS. Instead, diagnosis is usually based on a combination of your symptoms, menstrual cycle pattern, hormone levels, metabolic health markers and, in some cases, an ultrasound scan. Your doctor may recommend a combination of the following assessments. Medical history and symptom assessment The first step is usually a detailed conversation about your symptoms and health history. This may include questions about: This helps build a clearer picture of whether your symptoms fit with PMOS and whether other conditions need to be ruled out. Physical examination A clinician may also look for physical signs that can be associated with PMOS. These may include acne, excess facial or body hair, scalp hair thinning, skin tags or darker velvety patches of skin, which can sometimes be linked to insulin resistance. This helps identify patterns that may guide further testing. Blood tests for PMOS (PCOS) Blood tests are often used to check hormone levels, assess metabolic health and rule out other conditions that can cause similar symptoms. These may include: These tests help identify whether PMOS is likely, how it may be affecting your body, and what kind of support may be most appropriate. Pelvic ultrasound scan for PMOS (PCOS) A pelvic ultrasound may be recommended to look at the ovaries and uterus. This can help assess whether the ovaries have a polycystic appearance, meaning they contain a higher number of small follicles. A transvaginal ultrasound is often used because it provides a clearer view of the ovaries. This involves placing a slim ultrasound probe into the vagina, which uses sound waves to create images on a screen. However, having polycystic-looking ovaries alone is not enough to diagnose PMOS. Some people have polycystic ovaries without symptoms, and some people with PMOS may not have obvious changes on ultrasound. Pelvic examination In some cases, a pelvic examination may be offered to check for abnormalities or signs of other reproductive health conditions. This is not always needed for a PMOS diagnosis, but it may be useful if you have symptoms such as pelvic pain, abnormal bleeding or pain during sex. Testing does more than confirm a diagnosis. It can help rule out other causes of irregular periods, acne, excess hair growth or difficulty conceiving, and it can identify whether PMOS is affecting ovulation, hormone balance or metabolic health. That means your care can be tailored to what is actually happening in your body, whether that involves cycle support, fertility planning, skin and hair treatment, metabolic health support or longer-term monitoring. How is PMOS/PCOS diagnosed? PMOS is diagnosed using the Rotterdam criteria, the internationally recognised diagnostic framework, most recently updated in the 2023 International Evidence-Based PCOS Guidelines. To receive a diagnosis, you must meet at least 2 of the following 3 criteria. You do not need all three. Criterion 1: Irregular or absent menstrual cycles This criterion reflects the disruption to ovulation that is central to PMOS. When elevated androgens interfere with follicle development, ovulation doesn’t happen reliably, and without ovulation, the regular hormonal cycle that produces a period is disrupted. What counts as irregular?  A single late or missing period doesn’t meet this criterion, it needs to be a consistent pattern, not an occasional variation. Criterion 2: Clinical or biochemical hyperandrogenism (elevated androgens) This criterion reflects the androgen excess that is the hormonal driver of many PMOS symptoms. It can be met in two ways, through physical symptoms, or through blood test results, either is sufficient. Clinical hyperandrogenism means physical signs of elevated androgen activity: Biochemical hyperandrogenism means elevated androgens on a blood test including high testosterone and DHEAS. SHBG is a protein that binds to testosterone and reduces its biological activity. In PMOS, SHBG is often low, meaning more testosterone is free and active. This is why a PMOS-focused blood panel should always include SHBG alongside testosterone, not testosterone in isolation. Hormonal contraception can raise SHBG significantly, which suppresses testosterone and can mask androgen excess entirely. If you’re on or have recently stopped the pill, your androgen levels may not reflect your true baseline for several months. Ideally, androgens should be tested at least 3 full cycles after stopping hormonal contraception for the most accurate picture. Criterion 3: Polycystic ovarian morphology (PCOM) This criterion refers to evidence of the characteristic ovarian appearance associated with PMOS, a high number of follicles that haven’t been able to progress to ovulation. It can now be assessed in two ways: Transvaginal ultrasound (TVUS) A pelvic ultrasound scan counts the number of follicles visible in each ovary. The scan should ideally be performed in the early follicular phase, days 1-7 of the menstrual cycle, when follicles are at their most clearly countable.  AMH blood test This is the significant change introduced in the updated 2023 guidelines. AMH (anti-Müllerian hormone) is a hormone made by the follicles themselves. In PMOS, AMH is typically elevated, reflecting the high number of small arrested follicles. AMH is now formally accepted as an alternative to ultrasound for assessing polycystic ovarian morphology. This means that for many people, a blood test alone can support this third criterion, without the need for an internal transvaginal scan. Can AMH diagnose PMOS (PCOS)? AMH can help […]