Endometriosis: Should Surgery or IVF Come First?

Endometriosis is one of the most common gynecological conditions associated with female infertility. Many women who wish to conceive wonder whether they should undergo surgical treatment for endometriosis before attempting pregnancy or proceed directly with in vitro fertilization (IVF).

The answer is not the same for every woman. The optimal approach depends on several factors, including age, ovarian reserve, disease severity, symptoms, and the duration of infertility.

What Is Endometriosis?

Endometriosis is a chronic gynecological condition in which tissue similar to the lining of the uterus (endometrium) grows outside the uterine cavity.

Common locations include:

• Ovaries
• Fallopian tubes
• Peritoneum
• Pelvic ligaments
• Bowel or bladder in more advanced cases

The condition may cause:

• Severe menstrual pain
• Chronic pelvic pain
• Pain during sexual intercourse
• Infertility

How Does Endometriosis Affect Fertility?

Endometriosis can impair fertility through several mechanisms, including:

• Formation of pelvic adhesions
• Distortion of pelvic anatomy
• Impaired fallopian tube function
• Reduced egg quality
• Chronic pelvic inflammation
• Impaired embryo implantation

It is estimated that approximately 30–50% of women with endometriosis may experience fertility difficulties.

When Is Surgery Recommended?

Laparoscopic surgery can provide significant benefits in selected cases.

Surgical treatment is generally recommended when there are:

Significant Symptoms

• Severe menstrual pain
• Chronic pelvic pain
• Pain that interferes with daily activities

Large Endometriomas (Ovarian Endometriotic Cysts)

Particularly when they:

• Are large in size
• Cause symptoms
• May interfere with egg retrieval during IVF treatment

Deep Infiltrating Endometriosis

When endometriosis affects nearby organs such as:

• Bowel
• Ureters
• Bladder

Suspicion of Other Pathology

When a definitive diagnosis is required or another condition needs to be excluded.

When Is IVF Preferred?

For many women, proceeding directly to IVF may be the most effective option.

This is often the case when:

• The woman is over 35 years of age
• Ovarian reserve is diminished
• Infertility has been present for an extended period
• Previous attempts at natural conception have been unsuccessful
• There is a significant male factor contributing to infertility
• Previous endometriosis surgery has already been performed

In these situations, delaying fertility treatment for surgery may further reduce the chances of achieving pregnancy.

Can Surgery Affect Ovarian Reserve?

This is one of the most important reasons why treatment decisions should be individualized.

The surgical removal of ovarian endometriomas may, in some cases, reduce ovarian reserve, particularly when:

• Endometriomas are present in both ovaries
• Multiple surgeries have been performed
• The woman already has a low AMH level

For this reason, assessment of ovarian reserve is essential before considering surgical treatment.

What Do Current Guidelines Recommend?

Current scientific guidelines suggest that surgery should not automatically be the first-line treatment for every woman with endometriosis who wishes to conceive.

Instead, the decision should be based on:

• The woman’s age
• Ovarian reserve
• Severity of endometriosis
• Presence of symptoms
• Duration of infertility
• History of previous surgeries

In many cases, proceeding directly to IVF may offer a faster route to pregnancy without the need for prior surgery.

Surgery or IVF? An Individualized Decision

There is no single approach that is appropriate for all women.

Surgery May Be Preferred When:

• Severe pelvic pain is present
• Large endometriomas are identified
• Deep infiltrating endometriosis affects other organs
• Anatomical restoration is necessary
• Complications or alternative diagnoses are suspected

IVF May Be Preferred When:

• Maternal age is advanced
• AMH levels are low
• Infertility has been long-standing
• Male factor infertility is present
• Rapid achievement of pregnancy is a priority

In many cases, collaboration between an endometriosis specialist and a reproductive medicine specialist is essential to develop the most effective treatment strategy.

Conclusion

Choosing between surgical treatment and IVF in women with endometriosis is not always straightforward. While surgery can improve symptoms and restore pelvic anatomy, direct IVF may offer the fastest and most effective path to pregnancy in selected patients.

The best treatment plan is based on an individualized assessment that takes into account age, ovarian reserve, disease severity, symptoms, and reproductive goals. A comprehensive fertility evaluation is the first step toward determining the most appropriate strategy and maximizing the chances of a successful pregnancy.