The endometriosis and fertility connection raises many questions and often intense anxiety. After all, endometriosis is one of the most common gynecological conditions, affecting about 10% of women of reproductive age. It can cause pain, cycle disturbances and difficulty conceiving. But it does not mean you cannot have children. In this article we explain how the condition affects fertility and which treatment options are available.
What Is Endometriosis?
Endometriosis is a condition in which tissue similar to the endometrium, the inner lining of the uterus, grows outside it, specifically on the ovaries, the fallopian tubes, the peritoneum or, more rarely, other organs. This misplaced tissue behaves like normal endometrium: it responds to the hormonal changes of the cycle and bleeds every month, causing inflammation, pain and the formation of adhesions.
Endometriosis is usually classified into four stages, from minimal to severe, depending on the extent, depth and location of the lesions. The intensity of symptoms does not always match the stage: women with limited disease may have severe pain, while others with severe endometriosis may have almost no symptoms.
Common Symptoms
Endometriosis shows up in many different ways. The most common symptoms include:
- Severe period pain (dysmenorrhea) that does not ease with usual painkillers.
- Chronic pelvic pain, outside of menstruation.
- Pain during sexual intercourse (dyspareunia).
- Pain or discomfort when urinating or having a bowel movement, especially during your period.
- Irregular or heavy menstrual periods.
- Difficulty conceiving.
Many women wrongly believe that severe period pain is “normal.” If pain affects your daily life, a specialist evaluation is clearly worthwhile.
How It Affects Fertility
The relationship between endometriosis and female infertility is multifactorial and depends on the extent and location of the lesions. Endometriosis can reduce fertility through several mechanisms:
- Anatomical changes and adhesions that affect how the fallopian tubes and ovaries work.
- Endometriomas (ovarian cysts) that can reduce ovarian reserve and egg quality.
- Chronic pelvic inflammation that makes fertilization and implantation harder.
- Hormonal changes that can affect ovulation.
Even so, many women with endometriosis conceive naturally. The key is early diagnosis and proper planning, so that valuable time is not lost.
Diagnosing Endometriosis
Diagnosis starts with a detailed history and a clinical examination. Transvaginal ultrasound can show endometriomas and deep lesions. In selected cases, MRI is used for more precise mapping. However, the definitive diagnosis, especially for small lesions, is made with laparoscopy, a minimally invasive technique that allows direct visualization and, when needed, treatment in the same procedure.
When pregnancy is desired, the workup is completed with an assessment of ovarian reserve (including measurement of AMH) and a check of whether the fallopian tubes are open, so that treatment can be planned individually.
Treatment Options When You Want to Get Pregnant
1. Surgical Treatment
In selected cases, mainly when there are significant lesions or endometriomas, laparoscopic removal of the lesions can relieve pain and increase the chances of natural conception. The decision is weighed carefully, since any surgery on the ovaries can affect ovarian reserve.
2. Assisted Reproduction
In moderate or severe endometriosis, when the chances of natural conception are reduced, in vitro fertilization (IVF) offers the highest chances of pregnancy. IVF can “bypass” many of the problems endometriosis causes (anatomical changes, tubal dysfunction), giving a clear path to parenthood.
In mild endometriosis with open fallopian tubes, a first treatment option may be intrauterine insemination (IUI) with mild stimulation, before moving on to IVF.
3. Timing and Planning
Time is a critical factor. Because endometriosis can worsen over time and ovarian reserve naturally declines with age, some women also discuss egg freezing as a way of preserving fertility, especially before extensive surgery.
Which plan fits your case: four common scenarios
With endometriosis there is no single fertility treatment for everyone. The choice is based on four factors: age, ovarian reserve, the condition of the fallopian tubes and sperm quality. The scenarios below are only examples and help you understand the reasoning behind the decision.
Young woman, mild disease, open fallopian tubes
With a normal anti-Müllerian hormone (AMH) level and a good semen analysis, trying naturally for a reasonable period makes sense. If pregnancy does not happen, intrauterine insemination with mild ovarian stimulation is the next step, according to European guidelines for the early stages of the disease.
Endometrioma without significant pain
If the plan is IVF anyway, routinely removing the cyst before stimulation does not increase the chances of a live birth and may reduce the reserve. Surgery is discussed when there is severe pain, an atypical appearance on ultrasound or a cyst that blocks access to the follicles. We explain the surgical options in detail on the page about laparoscopy for endometriosis.
Age over 37 to 38 or diminished ovarian reserve
Here time is the most valuable resource. Usually IVF is recommended directly, without surgery or a long wait in between.
Severe disease, damaged tubes or male factor
IVF, with or without ICSI, is the treatment with the highest chances, because it bypasses both the fallopian tubes and the pelvic environment.
IVF with endometriosis: what changes in practice
For most women, the process is very similar to any other IVF cycle. There are, however, some particularities:
- Response to stimulation: with endometriomas or after ovarian surgery, the number of eggs may be lower. Dosing is adjusted based on the reserve.
- Protocol: long-term pretreatment with GnRH analogs before stimulation has been studied, but it has not been shown to consistently increase live births. The choice of protocol is individualized.
- Egg retrieval: when an endometrioma is present, the doctor avoids puncturing it, because this increases the risk of infection. In some cases, preventive antibiotics are given around the time of egg retrieval.
- Disease recurrence: the available data do not show that IVF stimulation worsens endometriosis or increases recurrences.
- Embryo transfer: the embryo transfer can take place in the same cycle or after freezing. A freeze-all strategy does not appear to benefit all women with endometriosis consistently and is decided case by case.
Egg quality, implantation and chances: what we know
A common concern is whether endometriosis “damages” eggs or embryos. Large reviews show that, in mild forms, the chances of a live birth after IVF are broadly comparable to those of women with other causes of infertility. In severe forms, fewer eggs are usually collected, and some studies show slightly lower rates. The most important finding, however, is that the woman’s age and the number of eggs affect the outcome much more than the stage of the disease itself.
Fertility preservation: when egg freezing makes sense
Egg freezing is not needed for every woman with endometriosis. It is mainly discussed when:
- there are endometriomas on both ovaries,
- ovarian surgery has already been done and another is planned,
- AMH is falling faster than expected for her age,
- the woman is not planning a pregnancy in the near future but wants to keep her options open.
The decision is based on realistic information. The chance that frozen eggs will lead to a birth depends mainly on age at the time of freezing and on how many eggs are frozen. The earlier it is done, the greater its value.
Adenomyosis: the related condition that affects implantation
Many women with endometriosis also have adenomyosis, in which endometrial tissue grows into the muscular wall of the uterus. The uterus becomes enlarged, periods become heavy and painful, and embryo implantation can be more difficult. Diagnosis is made with a careful transvaginal ultrasound or MRI. When adenomyosis is present, some centers prefer a frozen embryo transfer after a short course of hormonal preparation of the uterus. The evidence for this approach is still limited, but recognizing adenomyosis helps explain repeated implantation failures and adapt the plan.
Pregnancy in a woman with endometriosis
When the long-awaited pregnancy comes, most women with endometriosis have a normal pregnancy. Some studies show a small increase in the risk of placenta previa, preterm birth and first-trimester miscarriage. This is not a reason to worry, but a reason for careful monitoring. Regular obstetric ultrasounds and letting your obstetrician know your history are enough in most cases. Rarely, endometriomas change appearance during pregnancy because of hormones, something an experienced sonographer recognizes.
Pain, sex life and psychological pressure while trying to conceive
Endometriosis tests couples in a way that is rarely discussed. Painful intercourse turns “timed” sex on fertile days into a source of stress. Pain is exhausting. And every negative test adds more weight. A few practical thoughts:
- Talk openly with your doctor about pain during sex. There are ways to reduce it, and it is a factor that influences the choice of treatment.
- If trying naturally has become exhausting, assisted reproduction can be a solution for your quality of life too, not just for your chances.
- Psychological support from a fertility specialist is not a luxury. It reduces anxiety and helps people avoid giving up treatment too early.
Managing pain while trying for a baby
Hormonal treatments that suppress endometriosis also block ovulation, so they cannot be used while you are trying to conceive. Pain is then managed with simple painkillers. Some evidence suggests that nonsteroidal anti-inflammatory drugs (NSAIDs), when taken around ovulation, may affect the rupture of the follicle. That is why you should discuss with your doctor which painkiller is best in each phase of your cycle. If the pain is so severe that it cannot be controlled, that alone changes the strategy and may bring surgery or assisted reproduction forward.
Questions for your fertility appointment when you have endometriosis
A well-prepared appointment saves months. Bring previous test results, surgical reports and pathology reports, and ask:
- What is my ovarian reserve today and how quickly might it change?
- Are my fallopian tubes open, and what does my partner’s semen analysis show?
- How long is it reasonable to try naturally before moving to the next step?
- Is there a reason for surgery, or is IVF a shorter path for me?
- Should I consider egg freezing?
- How will we manage pain while I am trying to get pregnant?
The answers to these questions form a personal roadmap, with a clear timeline and points for reassessment.
When to See a Specialist
If you have severe dysmenorrhea, chronic pelvic pain or have been trying to conceive without success for more than 6 to 12 months, do not hesitate to see an obstetrician-gynecologist (OB-GYN). Early diagnosis of endometriosis not only improves quality of life but also protects fertility before serious effects appear.
Key takeaways about endometriosis and fertility
Endometriosis and fertility can coexist with a positive outcome, as long as treatment is personalized and timely. Today there are reliable treatment options, both surgical and assisted reproduction, that give many women with endometriosis the chance to fulfill their wish to become mothers.
For a personalized assessment of your case, book an appointment with Dr. Panagiotis Polyzos at his office in Athens or Volos.
Frequently Asked Questions
Can I get pregnant naturally if I have endometriosis?
Yes. Most women with mild or moderate endometriosis conceive without help, although it may take longer. If 6 to 12 months pass without success, ask for an evaluation.
Do all women with endometriosis have infertility?
No. It is estimated that about one third to one half of women with the condition have difficulty conceiving, depending on severity and age.
Do I need surgery before trying for a baby?
Not always. Laparoscopy for endometriosis helps in specific cases. In others, especially with low ovarian reserve, going straight to IVF is preferred.
Does IVF help with endometriosis?
IVF (in vitro fertilization) bypasses the obstacles the disease creates in the fallopian tubes and pelvis and is the most effective treatment for the more severe forms.
Does pregnancy improve endometriosis?
Symptoms often ease during pregnancy, because periods stop. However, endometriosis is not cured and may return after childbirth and breastfeeding.
Can IVF stimulation make endometriosis worse?
The available data do not show that the hormonal stimulation of IVF worsens endometriosis or increases its recurrence. High estrogen levels last only a few days and, if pregnancy follows, they are followed by a long time without periods.
Is intrauterine insemination (IUI) worth it if I have endometriosis?
In mild forms, with open fallopian tubes and good sperm, intrauterine insemination (IUI) with mild ovarian stimulation is a reasonable first choice for a few cycles. In severe forms or at an older age, going straight to IVF is usually preferred.
Does endometriosis affect embryo quality?
In mild forms, embryo quality and the chances of a live birth after IVF are broadly similar to other causes of infertility. Age and the number of eggs play a bigger role than the stage of the disease.
Should I freeze my eggs if I have endometriosis?
Not necessarily. Freezing is mainly discussed when there are endometriomas on both sides, when ovarian surgery is planned or when the reserve is falling quickly and pregnancy is not an immediate goal.