Understanding PCOS: What It Is, Why It Happens, and How It Can Affect Your Health
Polycystic ovary syndrome, commonly called PCOS, is one of the most common hormonal conditions affecting women of reproductive age. Yet many people live with PCOS for years without realizing they have it.
PCOS can affect menstrual cycles, fertility, weight, skin, hair growth, and even long-term metabolic health. However, PCOS does not look the same in everyone. Understanding the signs and knowing when to talk with a healthcare provider can make it easier to find answers and manage the condition.
What Is PCOS?
PCOS is a hormonal and metabolic disorder involving the ovaries and the hormones that regulate the menstrual cycle.
Despite its name, you do not have to have ovarian cysts to have PCOS. The name can be confusing because some people with PCOS develop many small follicles that can be seen on an ultrasound, while others do not.
PCOS is generally associated with some combination of:
- Irregular, infrequent, or absent menstrual periods
- Higher-than-normal levels or effects of androgens, sometimes called “male hormones”
- Changes in the ovaries that may be visible on ultrasound
A healthcare provider looks at the overall pattern of symptoms, medical history, physical findings, and sometimes laboratory testing or imaging when evaluating someone for PCOS.
What Causes PCOS?
There is no single known cause of PCOS. Instead, several factors appear to play a role, including genetics, hormone regulation, and metabolism.
Insulin resistance is particularly common in PCOS. Insulin helps move glucose from the bloodstream into cells, where the body can use it for energy. When cells become less responsive to insulin, the body may produce more of it.
Higher insulin levels can affect ovarian hormone production and contribute to increased androgen levels. As a result, ovulation may become less predictable and other PCOS symptoms may develop.
Importantly, PCOS can occur in people of any body size. Being overweight is not a requirement for having PCOS.
What Are the Signs of PCOS?
Symptoms can begin around puberty, but for some people they become noticeable later.
Common signs include:
- Irregular periods
- Very long menstrual cycles
- Missing periods
- Difficulty becoming pregnant
- Increased facial or body hair
- Acne that is difficult to control
- Thinning hair on the scalp
- Weight gain or difficulty managing weight
- Darkened or thickened areas of skin, particularly around the neck or underarms
Someone may have only a few of these symptoms. That variation is one reason PCOS can sometimes be difficult to recognize.
PCOS Is About More Than Your Period
Although menstrual changes are often what bring someone to the doctor, PCOS can affect more than reproductive health.
People with PCOS may have an increased risk of developing insulin resistance, prediabetes, type 2 diabetes, abnormal cholesterol levels, and other metabolic problems.
Going for long periods without menstruating can also allow the lining of the uterus to become too thick. Over time, this can increase the risk of endometrial problems.
Therefore, treating PCOS isn’t simply about making periods more predictable. It is also about protecting your long-term health.
Can PCOS Affect Fertility?
Yes, but having PCOS does not mean that you cannot become pregnant.
PCOS can interfere with regular ovulation. If an egg is not released consistently, becoming pregnant may take longer.
However, many people with PCOS become pregnant naturally, while others may benefit from treatment to help regulate ovulation. If you have PCOS and hope to become pregnant, talking with a healthcare provider can help you understand your individual situation and options.
How Is PCOS Diagnosed?
There isn’t one single test that diagnoses PCOS.
Instead, your healthcare provider may ask about your menstrual cycles, changes in hair or skin, weight history, medications, family history, and pregnancy plans.
Depending on your symptoms, your evaluation may also include:
- A physical examination
- Blood tests to evaluate hormone levels
- Blood sugar or A1C testing
- Cholesterol testing
- Pregnancy testing when appropriate
- Thyroid or other testing to rule out conditions that can cause similar symptoms
- Pelvic ultrasound in some cases
Other medical conditions can mimic PCOS, so getting an appropriate evaluation is important rather than assuming irregular periods automatically mean PCOS.
How Is PCOS Treated?
There is no single treatment that is right for everyone. Treatment should focus on your symptoms, health risks, and personal goals.
For some people, treatment may focus on regulating menstrual cycles. For others, fertility, acne, unwanted hair growth, insulin resistance, or metabolic health may be the primary concern.
Treatment can include lifestyle changes and, when appropriate, medications.
Regular physical activity, adequate sleep, nutritious foods, and maintaining a healthy weight for you can support metabolic health. Even when weight loss isn’t needed or isn’t the primary goal, exercise and good nutrition can still provide meaningful health benefits.
Medications may also be used to regulate periods, improve insulin sensitivity, manage androgen-related symptoms, or assist with fertility.
Don’t Ignore Changes in Your Menstrual Cycle
Periods don’t have to occur on exactly the same day every month. However, repeatedly missing periods, going months without one, or experiencing a significant change in your normal cycle deserves attention.
The same is true if you’re experiencing new facial hair growth, persistent acne, unexplained changes in weight, or difficulty becoming pregnant.
These symptoms don’t necessarily mean you have PCOS, but they are worth discussing with a healthcare provider.
You Don’t Have to Figure It Out Alone
PCOS can be frustrating because its symptoms can seem unrelated. Irregular periods, acne, unwanted hair growth, difficulty with weight, or fertility concerns may initially appear to be separate problems.
However, sometimes those pieces are connected.
At Aslan Health, we believe primary care should give you a place to ask questions, understand what is happening in your body, and decide what comes next. If you are concerned about irregular periods or other symptoms of PCOS, we can help evaluate your symptoms, discuss appropriate testing, and develop a plan based on your individual needs.
Understanding what is happening is often the first step toward taking better control of your health.
Aslan Health — Caring for Our Neighbors.