Polycystic ovary syndrome (PCOS) is one of the most common hormonal conditions affecting women of reproductive age and a frequent cause of irregular ovulation and difficulty conceiving.
PCOS can affect menstrual cycles, hormone levels, metabolism, skin, hair growth, and fertility. Symptoms vary widely from person to person, and not everyone with PCOS has the same concerns.
What Is PCOS?
Polycystic ovary syndrome is a hormonal and metabolic condition that can interfere with normal ovarian function.
Despite the name, having ovarian cysts is not required for a diagnosis of PCOS. The term refers to the appearance of multiple small follicles that may be seen in the ovaries on ultrasound.
PCOS commonly involves a combination of:
- Irregular or absent ovulation
- Elevated androgen levels
- Polycystic ovarian morphology on ultrasound
A diagnosis is made based on your overall clinical picture rather than a single test.
Common Symptoms of PCOS
PCOS can present differently in each person.
Possible symptoms include:
- Irregular menstrual cycles
- Infrequent periods
- Missed periods
- Difficulty predicting ovulation
- Difficulty conceiving
- Acne
- Increased facial or body hair
- Scalp hair thinning
- Weight gain or difficulty losing weight
- Insulin resistance
- Darkened areas of skin
- Multiple small ovarian follicles on ultrasound
Some women have only mild symptoms, while others experience several of these concerns.
How Can PCOS Affect Fertility?
PCOS can make conception more difficult primarily because ovulation may occur irregularly or not occur at all.
When ovulation is unpredictable, there are fewer opportunities for an egg to be released and fertilized.
Some women with PCOS may have very long menstrual cycles, while others may go several months without a period.
PCOS can also be associated with metabolic and hormonal factors that may influence reproductive health.
The good news is that many women with PCOS are able to become pregnant naturally or with appropriate fertility treatment.
Do Women With PCOS Ovulate?
Yes, many women with PCOS do ovulate.
However, ovulation may occur less frequently or unpredictably.
Having menstrual bleeding does not always confirm that ovulation has occurred.
Ovulation can be evaluated using:
- Cycle tracking
- Ovulation predictor kits
- Progesterone blood testing
- Ultrasound monitoring
- Changes in cervical mucus or basal body temperature
For women with irregular cycles, laboratory testing and ultrasound may provide more reliable information.
How Is PCOS Diagnosed?
PCOS is typically diagnosed after considering your medical history, menstrual pattern, physical symptoms, blood tests, and sometimes ultrasound findings.
Evaluation may include:
Menstrual History
Irregular, prolonged, or absent menstrual cycles may suggest inconsistent ovulation.
Androgen Testing
Blood tests may evaluate testosterone and other androgen-related hormones.
Pelvic Ultrasound
A transvaginal ultrasound may assess ovarian appearance, follicle count, uterine structure, and endometrial thickness.
Thyroid Testing
Thyroid disorders can also cause irregular menstrual cycles and should sometimes be excluded.
Prolactin
Elevated prolactin can interfere with ovulation and may produce symptoms that resemble PCOS.
Blood Sugar and Metabolic Testing
Depending on your history, testing may include fasting glucose, HbA1c, insulin, cholesterol, or other metabolic markers.
Other hormonal conditions may also need to be excluded before confirming a diagnosis.
PCOS and AMH
Women with PCOS often have higher AMH levels because the ovaries may contain a larger number of small follicles.
A high AMH level by itself does not diagnose PCOS.
AMH should be interpreted together with menstrual history, hormone testing, symptoms, and ultrasound findings.
PCOS and Insulin Resistance
Insulin resistance is common in PCOS, although it does not affect every patient.
When the body becomes less responsive to insulin, the pancreas may produce more insulin to maintain normal blood sugar levels.
Higher insulin levels can contribute to increased androgen production and may worsen irregular ovulation.
Signs associated with insulin resistance may include:
- Weight gain around the abdomen
- Difficulty losing weight
- Elevated blood sugar
- Darkened skin around the neck or underarms
- Increased hunger or cravings
Metabolic health is an important part of long-term PCOS care.
Can You Get Pregnant Naturally With PCOS?
Yes.
Many women with PCOS conceive naturally, particularly if they are ovulating regularly.
For women who ovulate infrequently, identifying whether and when ovulation occurs can be an important first step.
Fertility also depends on other factors, including:
- Age
- Egg quality
- Fallopian tube health
- Uterine health
- Sperm quality
- Frequency and timing of intercourse
PCOS should not automatically be assumed to be the only cause of infertility.
Fertility Testing for Women With PCOS
A complete fertility evaluation may include:
- AMH
- FSH and estradiol
- Progesterone
- TSH
- Prolactin
- Androgen testing
- Pelvic ultrasound
- Antral follicle count
- Fallopian tube assessment
- Semen analysis for the male partner
Additional testing may be recommended depending on your age, symptoms, and reproductive history.
PCOS and Ovulation Induction
When irregular or absent ovulation is the main fertility concern, medications may be used to stimulate ovulation.
Common fertility treatments may include:
- Letrozole
- Clomiphene citrate
- Metformin in selected patients
- Injectable gonadotropins
- IUI
- IVF
The most appropriate treatment depends on your age, fertility history, hormone levels, metabolic health, and other reproductive factors.
PCOS and IVF
Most women with PCOS have a relatively high number of ovarian follicles and may respond strongly to ovarian stimulation.
This can be beneficial because multiple eggs may be retrieved, but treatment must also be carefully monitored.
Women with PCOS may have an increased risk of ovarian hyperstimulation syndrome during fertility treatment, although modern IVF protocols can significantly reduce this risk.
Treatment plans are typically individualized according to ovarian reserve, age, hormone levels, previous response, and fertility goals.
PCOS and Miscarriage
Some studies have found an association between PCOS and an increased risk of miscarriage, particularly when other factors such as insulin resistance, obesity, or advanced maternal age are present.
However, many women with PCOS have completely healthy pregnancies.
If recurrent pregnancy loss has occurred, a broader evaluation should be considered rather than assuming PCOS is the only explanation.
PCOS and Pregnancy
Once pregnant, women with PCOS may have a higher likelihood of certain pregnancy complications, including:
- Gestational diabetes
- Pregnancy-related high blood pressure
- Preterm birth
Appropriate prenatal care and monitoring can help identify and manage these risks.
Long-Term Health and PCOS
PCOS is not only a fertility condition.
It can also be associated with long-term metabolic and reproductive health concerns, including:
- Insulin resistance
- Type 2 diabetes
- Abnormal cholesterol levels
- High blood pressure
- Endometrial overgrowth when periods are very infrequent
Women who go long periods without menstruation should discuss endometrial protection and cycle management with their healthcare provider.
When Should You Seek Fertility Care?
You may want to consider a fertility evaluation if:
- Your menstrual cycles are very irregular
- You rarely or never ovulate
- You have been diagnosed with PCOS and are trying to conceive
- You have been trying to conceive without success
- You are over age 35
- You have experienced recurrent miscarriage
- You have additional fertility concerns such as endometriosis or tubal problems
- Your partner may have a male fertility concern
Women with known irregular ovulation do not necessarily need to wait a full year before seeking fertility guidance.
PCOS Is Treatable
A diagnosis of PCOS does not mean that pregnancy will be impossible.
The most important step is identifying how PCOS is affecting your individual reproductive health.
For some women, the main issue is irregular ovulation. For others, additional fertility or metabolic factors may also need attention.
A complete evaluation can help determine the most appropriate next steps.
Fertility Care for PCOS in Calgary and Edmonton
Longevity Fertility Centre provides personalized fertility and reproductive health care for women with PCOS.
Your consultation includes a detailed review of your menstrual cycle, fertility history, laboratory results, imaging, previous treatments, and reproductive goals.