Endometriosis and Surrogacy: When Your Body Has Other Plans

For women living with endometriosis, the road to parenthood is rarely simple. The condition — in which tissue similar to the uterine lining grows outside the uterus — affects roughly 1 in 10 women of reproductive age, according to the American College of Obstetricians and Gynecologists (ACOG). In severe cases, it doesn’t just cause pain. It can make pregnancy medically inadvisable.

That’s where gestational surrogacy enters the picture. For many intended mothers with endometriosis, surrogacy isn’t a fallback. It’s the path that makes biological parenthood possible — and safe.

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What Endometriosis Actually Does to the Body

In endometriosis, tissue that behaves like the uterine lining grows in places it doesn’t belong — on the ovaries, fallopian tubes, the outer surface of the uterus, and sometimes organs far beyond the pelvis. Like the endometrium inside the uterus, this tissue responds to hormonal cycles. It swells. It sheds. But unlike normal menstrual tissue, it has nowhere to go.

The result is inflammation, scar tissue, and — in many cases — a reproductive system under siege.

Where it develops

Endometriosis most commonly appears in the pelvic area, affecting:

• The ovaries (where it can form painful cysts called endometriomas)
• The fallopian tubes and surrounding ligaments
• The space between the uterus and rectum
• The outer surface of the uterus and the pelvic wall lining

In rarer cases, it appears on the intestines, bladder, cervix, or even abdominal surgery scars. The reach of the condition can be surprisingly wide.

What it feels like

Symptoms vary widely from woman to woman — part of why diagnosis takes an average of 7 to 10 years, according to the Endometriosis Foundation of America. Common signs include:

• Severe menstrual cramps that worsen over time and extend into the lower back or pelvis
• Painful intercourse — often described as deep, not superficial
• Heavy or irregular bleeding, including spotting between cycles
• Digestive symptoms like bloating, constipation, nausea, or diarrhea around menstruation
• Difficulty conceiving — infertility affects an estimated 30 to 50% of women with endometriosis, per NIH-published research

Some women experience intense symptoms with mild disease. Others have advanced endometriosis with almost no pain. The severity of the condition on paper doesn’t always match the experience in the body.

How Endometriosis Affects Fertility — and Pregnancy

Endometriosis doesn’t just make conception difficult. For some women, the risks extend well into pregnancy itself.

Why IVF Alone Isn’t Always the Answer

IVF (in vitro fertilization) is often the first treatment discussed when endometriosis causes infertility. The logic makes sense: retrieve the eggs, fertilize them outside the body, then transfer the embryo. For many women, it works.

But for women with moderate to severe endometriosis, IVF addresses the fertilization problem without solving the implantation problem. The embryo still has to grow in a uterus compromised by inflammation and scarring.

There’s also the recovery question. Women with endometriosis often need surgery — laparoscopy to remove lesions, treatment for endometriomas, or in severe cases a hysterectomy. Pursuing pregnancy in a body that’s still fighting active disease is a different calculation than pursuing it after treatment.

This is why many reproductive specialists, when working with patients who have severe endometriosis, discuss surrogacy after failed IVF or when carrying is inadvisable. The embryo, created from the intended mother’s eggs, transfers to a surrogate’s healthy uterus — removing the high-risk environment entirely.

What Gestational Surrogacy Means for Endometriosis Patients

A common misconception: choosing surrogacy means giving up your genetic connection to the child. For most intended mothers with endometriosis, that’s not the case at all.

In gestational surrogacy, the embryo is created using the intended mother’s own eggs (if medically viable) and her partner’s sperm, or donor sperm. The surrogate carries the pregnancy but has no genetic relationship to the baby. The intended parents are the biological parents.

What surrogacy changes is where that embryo grows. Instead of an inflamed, scarred uterus carrying the added burden of pregnancy hormones, the embryo develops in a pre-screened surrogate whose reproductive health has been thoroughly verified.

Gestational surrogacy is one of the most medically sophisticated ways a family can be built — and one of the most human.

The Medical Case for a Physician-Led Agency

Not all surrogacy agencies are built the same — and for intended parents coming from a medical diagnosis, the difference matters.

Physician’s Surrogacy is the only surrogacy agency in the United States managed by practicing OB/GYNs. That’s not a branding statement. It changes how the entire program works.

The Surrogacy Process: What to Expect as an Intended Parent

For intended parents coming from an endometriosis diagnosis, the surrogacy process starts with one conversation — not a stack of medical forms. Here’s the shape of the journey once you decide to explore it.

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What Surrogacy Gives Intended Mothers with Endometriosis

There’s a version of this story that gets told in clinical terms: reduced risk of preeclampsia, eliminated risk of placenta previa, lower preterm delivery rate. All true. All worth knowing.

But there’s another version. It’s the one about the woman who spent a decade in pain, who sat through appointments where doctors measured her loss in stages, who watched other people’s pregnancies from a distance and wondered if she’d ever stop counting.

Surrogacy sits at the intersection of modern medicine and profound human generosity. It doesn’t erase what endometriosis took. But it gives something back — a biological child, a family, a beginning that belongs entirely to you.

While the surrogate carries the pregnancy, the intended mother can focus on her own health: treating the endometriosis, recovering from surgery, preparing emotionally for the arrival of her child. The two timelines run in parallel — and both matter.

Risk Factors: Who Is Most Likely to Develop Endometriosis

If you’re wondering whether your history put you at higher risk, the answer is often complex. Endometriosis can affect any woman who menstruates — but certain patterns raise the likelihood. Women who have never had children carry a higher statistical risk, as do those with shorter or longer-than-average menstrual cycles, or a family history of the condition.

There’s a strong genetic signal: if your mother, sister, or maternal aunt had endometriosis, your own risk increases meaningfully.

Medical conditions that disrupt normal menstrual flow — including those resulting from prior abdominal surgeries — can also contribute. A cesarean section, for example, can inadvertently displace uterine tissue, setting the stage for endometrial growth outside the uterus.

The causes remain incompletely understood. Retrograde menstruation — where menstrual blood flows back through the fallopian tubes rather than exiting the body — is one leading hypothesis. This backflow carries uterine tissue with it, which may then implant on surrounding structures.

Immune system dysfunction offers another explanation. A compromised immune response may fail to eliminate misplaced tissue before it takes hold. Hormonal factors, particularly elevated estrogen levels, also appear to play a contributing role in many cases.

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Julianna Nikolic

Chief Strategy Officer Julianna Nikolic leads strategic initiatives, focusing on growth, innovation, and patient-centered solutions in the reproductive sciences sector. With 26+ years of management experience and a strong entrepreneurial background, she brings deep expertise to advancing reproductive healthcare.