What Is Endometriosis — And How Does It Form?

Endometriosis is one of the most common — and most misunderstood — conditions affecting women’s reproductive health. Millions of women live with chronic pelvic pain, painful periods, fertility struggles, and digestive symptoms without fully understanding what is happening inside their bodies.

So what exactly is endometriosis, and how does it form?

Let’s break it down in simple terms.

How the Menstrual Cycle Normally Works

Each month, the lining inside the uterus (called the endometrium) thickens in preparation for pregnancy. If pregnancy doesn’t occur, that lining sheds and leaves the body as your menstrual period.

This process is normal and healthy.

What Happens in Endometriosis

With endometriosis, tissue that behaves like the uterine lining grows outside of the uterus, where it does not belong. These growths can be found on the ovaries, fallopian tubes, pelvic walls, bladder, bowel, and other areas within the pelvis.

Even though this tissue is outside the uterus, it still responds to monthly hormone changes.

That means each month:

• The tissue thickens and swells

• It may bleed internally

• But it has nowhere to drain

This trapped inflammation leads to irritation, scarring, adhesions, and ongoing pain.

Over time, this process can contribute to:

• Chronic pelvic pain

• Painful or heavy periods

• Pain with intercourse

• Bloating and digestive symptoms

• Fatigue

• Difficulty getting pregnant

Why Does Endometriosis Develop?

There is no single known cause of endometriosis, but research suggests several contributing factors:

Retrograde menstruation- Some menstrual blood flows backward through the fallopian tubes into the pelvic cavity instead of leaving the body. This tissue may implant and continue growing.

Hormonal imbalances- Endometriosis is strongly influenced by estrogen. Higher or unbalanced estrogen levels may stimulate these cells to grow and persist.

Immune system dysfunction- In a healthy immune system, misplaced tissue would normally be cleared away. When immune function is impaired, these cells may survive and implant.

Genetic predisposition- Endometriosis often runs in families, suggesting a hereditary component.

Chronic inflammation- Inflammation can promote implantation, growth, and scarring of endometrial-like tissue.

A Simple Way to Understand It

A helpful way to think about endometriosis is this:

“It’s like having pieces of your period lining growing in places they were never meant to be. Every month they react to hormones and swell, but your body can’t clear them out properly — so inflammation and pain build up over time.”

Why Endometriosis Is Often Missed

Endometriosis does not always show up on standard imaging and may take years to diagnose. Many women are told that severe period pain is “normal,” leading to delayed care and prolonged suffering.

But painful periods that interfere with daily life are not normal.

Early recognition and proper evaluation are key.

A Functional Medicine Approach to Endometriosis

At Rooted Within Wellness, we take a whole-body, integrative approach to endometriosis. Instead of focusing only on symptom suppression, we look deeper at the root drivers — including hormones, inflammation, gut health, immune function, and metabolic balance.

Treatment may include:

• Advanced hormone testing

• Targeted nutrition and anti-inflammatory strategies

• Gut and liver support

• Stress and nervous system regulation

• Thoughtful use of medications or hormone therapy when appropriate

Our goal is to reduce inflammation, balance hormones, support fertility when desired, and help you reclaim your quality of life.

When to Seek Help

If you experience:

• Severe or worsening period pain

• Pelvic pain outside of your cycle

• Pain with intercourse

• Unexplained infertility

• Chronic bloating or bowel symptoms related to your cycle

You deserve a deeper evaluation.

Ready to Take the Next Step?

If you suspect endometriosis or have been struggling with unresolved pelvic pain or hormone symptoms, we’re here to help.

At Rooted Within Wellness, we believe your symptoms are signals — not something to ignore.

Restore your balance.

Aligned. Balanced. Restored.