PCOS Explained: A Simple Guide to Understanding Your Hormones, Periods, and Fertility by Boyindetem Besong (IVF Physician,LMCenter)

If you’ve ever found yourself Googling things like “Why is my period so irregular?” or “Is it normal to have facial hair as a woman?” — you’re not alone. You might have even come across the term PCOS and felt overwhelmed by the medical jargon.

Polycystic Ovary Syndrome (PCOS) is more common than you might think. It affects about 1 in 10 women of reproductive age, and yet many people go years without a proper diagnosis or understanding of what’s really going on with their body.

In this post, I’m breaking it all down, no confusing terms, no scare tactics. Just clear, friendly info about what PCOS is, how it shows up, how it affects your fertility, and what you can actually do about it.

Let’s start at the beginning.

What Is PCOS, Really?
PCOS stands for Polycystic Ovary Syndrome, a condition that affects how the ovaries work. It’s mostly a hormonal issue. Think of it like your hormones being out of sync or miscommunicating with each other.

Your ovaries may not release eggs regularly (which affects your periods and fertility), and your body may produce slightly more “male” hormones like testosterone than usual. These changes can lead to symptoms like acne, unwanted hair growth, and irregular periods.

And despite the name, you don’t actually have to have cysts on your ovaries to be diagnosed, rather your ovaries tend to have a string of pearl appearance on ultrasound as compared to normal ovaries. PCOS is more about how your hormones are behaving than what your ovaries look like.

# What Causes PCOS?

Let’s be honest: PCOS can feel confusing because there’s no one single cause. But science has shown that a few key things tend to play a role. Here’s what we know so far:

1. Hormone Imbalance

At the heart of PCOS is a hormonal imbalance — mainly involving insulin and androgens (male-type hormones like testosterone).

• Insulin is a hormone that helps your body use sugar for energy. But in many women with PCOS, the body becomes resistant to insulin which means the cells don’t respond to it properly.

In response, your body makes more insulin to try to keep up. That extra insulin can trigger your ovaries to produce more androgens (like testosterone). Too many androgens = symptoms like acne, excess facial/body hair, and irregular periods.

🔍 In short: PCOS is often tied to high insulin levels, which mess with hormone balance and ovulation.

2. Genetics

PCOS tends to run in families. If your mom, aunt, or sister has it, your chances may be higher too. Scientists haven’t pinpointed a single “PCOS gene” yet, but it’s clear that family history matters.

3. Inflammation: Chronic low-level inflammation may contribute to androgen production

# Let’s Talk About Inflammation

Inflammation is your body’s natural response to injury or infection. In PCOS, the body may have a constant, low level of inflammation even without an obvious cause. This inflammation isn’t always something you can feel, but over time, it can affect how your ovaries work. It often shows up as fatigue, skin issues, or increased androgen production.

🩺How Is PCOS Diagnosed? 🩺

Doctors don’t rely on just one test to diagnose PCOS. Instead, they use a set of criteria based on symptoms, hormone levels, and what the ovaries look like on an ultrasound.

The most widely used standard is called the Rotterdam Criteria, which says a person must have at least two out of these three features;

1. Irregular or absent periods (this suggests that ovulation isn’t happening regularly)
2. Signs of high male hormones (either seen on the body or measured in a blood test)
3. Polycystic ovaries on an ultrasound (enlarged ovaries with lots of small follicles). They often appear as string of pearls pattern.

Let’s break each one down.

# Understanding Ovulation : and How to Know When It’s Missing

Ovulation is when the ovary releases an egg, and it usually happens once a month, around the middle of your cycle. If you’re trying to get pregnant, ovulation is the key. Without it, there’s no egg to fertilize.

But in PCOS, ovulation often doesn’t happen or happens irregularly. This is called anovulation (no ovulation) or oligo-ovulation (infrequent ovulation).

🚨 Signs that you may not be ovulating:

• Your periods are very irregular, coming late, early, or skipping months entirely
• Your cycle is longer than 35 days most months
• You don’t get period pain or other signs you used to associate with ovulation
• You’ve been trying to conceive for several months without success

Some women with PCOS have regular-looking periods but still don’t ovulate consistently — so doctors may run a few tests to check what’s really going on.

🧪 Blood Tests and Ultrasound: What to Expect

If a doctor suspects PCOS, they may order:

• Hormone tests to look at testosterone, LH, FSH, and prolactin
• Pelvic ultrasound to check for enlarged ovaries with multiple small follicles (which look like a string of pearls) or transvaginal ultrasound

📝 Quick Glance: PCOS Symptoms vs Signs of Ovulation

🌺 Common PCOS Symptoms

If you notice several of these, it’s worth speaking to a healthcare provider:

✅ Irregular or missed periods
✅ Unwanted facial or body hair (hirsutism)
✅ Acne or oily skin
✅ Weight gain or trouble losing weight
✅ Thinning hair or hair loss on the scalp
✅ Difficulty getting pregnant
✅ Dark patches on the skin (especially neck, underarms, or groin)
✅ Mood changes or fatigue

🌼 Signs You May Be Ovulating

Keep an eye out for these clues, especially if you’re tracking your cycle:

✅ Clear, stretchy, egg white-like cervical mucus
✅ Mild one-sided lower belly pain (mittelschmerz)
✅ Increase in sexual desire
✅ Slight rise in morning (basal) body temperature
✅ Tender breasts or light bloating
✅ Positive result on an ovulation predictor kit

💡 Tip: If you have PCOS, your symptoms may make it harder to track ovulation, but it’s still possible with a little patience and consistency.

#Treatment Options for PCOS

1. Lifestyle Changes First

Small changes can make a huge difference:

• Weight loss (even 5–10%) can help restore ovulation
• Balanced diet: Focus on low-glycemic foods, healthy fats, lean protein.
• Exercise: Aim for 150 minutes per week of moderate activity

2. Correcting Irregular Periods (Artificial Cycles)

Some women don’t need fertility treatment right away. Instead, doctors may prescribe hormonal birth control (OCPs) to regulate cycles.

Combined Oral Contraceptive Pills (OCPs)

• Help regulate periods and reduce acne
• Taken for 21 days, then a 7-day break
• ⚠️ Side effects: Weight gain, breast tenderness, mood swings
  Note: OCPs create an “artificial cycle” — you’ll bleed monthly, but you may not ovulate. After stopping the pills, your natural cycles may return with better regularity.

3. Drugs for Ovulation Induction

If you’re trying to conceive:

Letrozole

• Boosts FSH (follicle-stimulating hormone) which helps eggs mature
• Taken on days 2–6 of your cycle
• Fewer side effects than Clomid

Clomiphene Citrate (Clomid)

• Stimulates ovulation by blocking estrogen
• Taken on days 2–6 or 3–7
• May cause mood changes or hot flashes

Metformin

• Improves insulin sensitivity
• May restore regular ovulation and reduce excess androgens
• Nausea and digestive upset are common side effects

Ovofolic

• A supplement with myo-inositol and folic acid
• Helps with insulin regulation and egg quality
• Often taken daily for 3–6 months

4. Other Options

• Laparoscopic Ovarian Drilling (for women not responding to medication)
• IVF (used in complex fertility cases)

# FAQs About PCOS

Q: Can I get pregnant if I have PCOS?
Yes! It may take more time or assistance, but many women with PCOS get pregnant naturally or with treatment.

Q: Do birth control pills cure PCOS?
No. They help regulate periods but don’t fix the underlying hormonal imbalance.

Q: Is PCOS reversible?
There’s no cure, but symptoms can be managed with diet, exercise, and medications.

Q: What happens if PCOS is left untreated?
You may be at risk of long-term issues like infertility, endometrial hyperplasia, diabetes, and heart disease.

health risk associated with PCOS

💬 “Have you been diagnosed with PCOS or suspect you might have it? Share your experience or questions in the comments — I’d love to connect.”

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Written by: Boyindetem Besong