PCOS is now called PMOS, but how it’s diagnosed and treated hasn’t changed. Here’s how doctors confirm it, and the treatment options matched to what matters most to you.
PMOS (polyendocrine metabolic ovarian syndrome) is the new name for polycystic ovary syndrome, or PCOS, a common hormonal condition that affects cycles, androgen levels and metabolism. PMOS treatment is chosen by goal: regular periods, clearer skin and less unwanted hair, healthier metabolism, or getting pregnant. Healthy habits come first for everyone, and medicines such as birth control pills, metformin, spironolactone or letrozole are added for specific goals. PMOS diagnosis uses the same criteria as before the rename. See What Is PMOS? for what the new name means.
How PMOS is diagnosed
In adults, doctors diagnose PMOS when you have two of these three:
- Irregular or missing ovulation, usually shown by cycles shorter than 21 days or longer than 35 days, or fewer than eight periods a year.
- Signs of high androgens, either on a blood test or as acne, extra facial or body hair, or scalp hair thinning.
- Many small follicles on the ovaries on ultrasound, or a high AMH (anti-Müllerian hormone) blood level.
Your doctor will also rule out other conditions that look similar, such as thyroid problems, high prolactin and an adrenal condition called non-classic congenital adrenal hyperplasia. In teenagers, the rules are stricter: both irregular cycles and high androgens are needed, and ultrasound isn’t used for diagnosis.
Checks after diagnosis
Because PMOS is also a metabolic condition, the international guideline recommends regular checks of:
- blood sugar, to screen for prediabetes and type 2 diabetes
- cholesterol and blood pressure
- mood, since anxiety and depression are more common
- sleep, especially snoring or daytime sleepiness
The foundation for everyone
Regular movement, balanced eating, steady sleep and stress management help insulin resistance, mood and cycles at any weight. If you’re carrying extra weight, losing 5 to 10% can restore regular periods for some women. No single diet has been proven best; the right plan is one you can keep up.
PMOS treatment by goal
For irregular periods
- Combined birth control pills, the usual first choice. They create a regular monthly bleed and protect the uterine lining.
- Progestin tablets or a hormonal IUD, which protect the lining if you don’t want the pill.
- Metformin, a diabetes medicine that lowers insulin and can help cycles become more regular. See Metformin for PCOS.
Protecting the lining matters: going many months without a period lets it build up, which raises the long-term risk of changes in the uterus.
For acne, unwanted hair and hair thinning
- Combined birth control pills, which lower androgen production.
- Spironolactone, a tablet that blocks androgens, often added after 6 months if needed. It must be used with reliable contraception. See Spironolactone for PCOS.
- Hair removal and skin treatments alongside these. See PCOS Facial Hair and Acne Before Your Period.
For metabolism and weight
- Metformin, especially with insulin resistance or prediabetes.
- Weight-loss medicines, such as the newer GLP-1 injections, which a doctor may consider alongside lifestyle steps. They’re not used in pregnancy or when trying to conceive.
For getting pregnant
- Letrozole, a tablet originally used for breast cancer that is now the first-choice medicine to trigger ovulation in PMOS.
- Clomiphene, metformin, injectable fertility hormones or IVF, if needed.
See How to Get Pregnant With PCOS.
Supplements
Inositol is the best-studied supplement, but the evidence for it is limited. Tell your doctor about any supplement you take.
Does the new name change my treatment?
No. Your diagnosis and treatment stay the same. The new name may mean doctors pay more attention to the metabolic side, such as blood sugar and heart health, alongside cycles and fertility.
When to see a doctor
- Cycles shorter than 21 days or longer than 35 days, or no period for three months.
- Acne, extra hair growth or scalp hair thinning with irregular periods.
- Trying to conceive for 12 months, or 6 months if you’re over 35, or sooner with very irregular cycles.
- Rapid hair growth, a deepening voice or other fast changes. These need a prompt check for other causes.
The traditional Chinese medicine view
Traditional Chinese Medicine has no single pattern for PMOS. Infrequent periods with weight gain and sluggishness are often described as phlegm-dampness with a weak Spleen, and long gaps with tiredness and a cold back as Kidney deficiency. Interestingly, the new whole-body name moves closer to how TCM has always viewed this pattern. These are traditional descriptions, not a diagnosis, and the medical treatments above have the evidence.
An external routine for cycle timing
If you’d like a routine for your cycle that involves nothing swallowed, alongside your doctor’s plan, CycleBalance is one option. It is a sealed herbal pouch worn over the navel, held by a reusable belt and replaced every five days. It does not treat PMOS, insulin resistance, acne or hair growth, and it is not used when pregnancy is possible.
In Dr. Wang’s practice records from 2016 to 2022, seven women with irregular cycles used the CycleBalance formula. These were selected, uncontrolled cases, so they cannot show what caused any change or predict your result.
See CycleBalance’s directions →
Quick answers
Can PMOS be cured?
There’s no cure, but symptoms can be managed well, and they often change over time, for example around menopause.
What is the first-line treatment for PMOS?
Healthy habits for everyone, then usually birth control pills for irregular periods and androgen symptoms, or letrozole if you’re trying to conceive.
Do I need an ultrasound to be diagnosed?
Not always. If you have irregular cycles and signs of high androgens, that’s enough in adults.
Reviewed October 2026. Author: Qingcai Wang, MD, PhD, developer of the Five Essences external herbal-pouch formulations, with a commercial interest in their sale. General education only; continue your medical care.
Sources: 2023 International PCOS (PMOS) Guideline; Teede HJ et al. The Lancet (2026), PMOS name change consensus.
The routine behind this article
CycleBalance is the Five Essences external herbal pouch matched to this topic — worn on the body, nothing swallowed. One course is six pouches (about 30 days), with a fresh pouch every five days. $199 per course; the reusable belt is $15 if you don’t have one. Every first course is covered by the 90-Day First-Course Satisfaction Guarantee.
Wellness support, not medical care.
This article is part of our Women’s Core Health guide — cycle, fertility and postpartum, in one place.