11/10/2026
Common symptoms of PMOS and what they mean
PMOS (PCOS) is a syndrome, meaning a collection of symptoms and the way it presents looks different between people. None of these symptoms are diagnostic in themselves , but some point towards the criteria that can lead to a PMOS diagnosis using the Rotterdam Criteria (more on that in another post). Here are some common symptoms and what they mean:
Hirsutism, or excess hair
Acne post-puberty
Thinning of hair in areas such as the crown of the head (unfairly you can have excess hair in one place and thinning in another!)
👉🏽 These are signs of raised androgens (“male” hormones, such as testosterone), which can be confirmed via a blood test.
Irregular periods (greater than 35 days between periods)
Infrequent periods (variable menstrual cycle lengths)
Absent periods (“Oligomenorrhea”)
👉🏽 Signs of ovulatory dysfunction, meaning ovulation isn’t occurring as expected.
Patches of darker, thicker and sometimes velvety skin (“Acanthosis nigricans”)
Raised blood glucose levels (usually found with a blood test)
Poor lipid levels in a blood test, such as raised triglycerides, low HDL/ high LDL cholesterol levels
Weight distributed around the abdomen (central adiposity) or difficulty in losing weight
👉🏽 Signs of insulin resistance or metabolic health impairment
It is also common for people with PMOS to be living with poorer mental health outcomes, disordered eating and disordered relationships with their bodies. These can be overlooked as symptoms, but can have a huge impact on someone’s quality of life.
This list is by no means exhaustive, but includes some common symptoms, some of which indicate a specific aspect of PMOS, like raised androgens. Having a clear list of symptoms can help both with tracking PMOS, and assessing whether or not you have the condition. Many of these symptoms overlap with other conditions, so shouldn’t be relied upon or used to self-diagnose, but can give helpful clues.