Endometriosis is a common condition in which tissue similar to the lining of the uterus grows outside the uterus, most often affecting the ovaries, fallopian tubes and other areas of the pelvis. It can cause pelvic pain, painful periods and other symptoms, although some women may have no obvious signs.
Endometriosis can also affect fertility, but having the condition does not necessarily mean that a woman will be unable to become pregnant. Early evaluation and an individualized treatment plan can help manage symptoms and determine the most appropriate approach for women who are trying to conceive.
What Is Endometriosis?
Endometriosis is a chronic condition in which tissue similar to the endometrium, the lining of the uterus, develops outside the uterine cavity. It most commonly affects the ovaries, fallopian tubes and tissues within the pelvis, although in some cases it may also involve areas such as the bowel or bladder.
When endometriosis affects the ovaries, it can lead to the formation of cysts known as endometriomas, which may be detected during a transvaginal ultrasound. The condition can also cause inflammation, scar tissue and adhesions within the pelvis.
Endometriosis affects approximately 10% of women of reproductive age worldwide. Its severity varies significantly from one woman to another, and the extent of the disease does not always correspond to the intensity of symptoms.
What Causes Endometriosis?
The exact cause of endometriosis is not fully understood. Several mechanisms have been proposed, and it is likely that a combination of hormonal, genetic, immune and environmental factors contributes to its development.
One of the most widely discussed theories is retrograde menstruation, in which menstrual blood containing endometrial-like cells flows backwards through the fallopian tubes into the pelvic cavity. These cells may then attach to surrounding tissues and continue to grow.
Alterations in the immune system may also play a role, as the body may be less effective at identifying and removing endometrial-like cells that develop outside the uterus. Genetics may also contribute, since women with a close family history of endometriosis appear to have an increased risk of developing the condition.
What Are the Symptoms of Endometriosis?
The symptoms of endometriosis can vary significantly from one woman to another. Some women experience severe pain and other noticeable symptoms, while others may have mild symptoms or no symptoms at all.
The most common symptoms of endometriosis include:
- Painful periods
- Chronic pelvic pain
- Heavy menstrual bleeding
- Pain during or after sexual intercourse
- Pain during bowel movements or urination, particularly during menstruation
- Abdominal bloating
- Fatigue
- Difficulty becoming pregnant
The intensity of symptoms does not always reflect the extent of endometriosis. A woman with mild disease may experience significant pain, while another woman with more extensive endometriosis may have few or no symptoms.
In some cases, endometriosis is first discovered during an investigation for infertility.
Endometriosis and Fertility
Endometriosis can affect fertility, but being diagnosed with the condition does not necessarily mean that a woman will be unable to become pregnant. The impact on fertility varies depending on the location and extent of the disease, age, ovarian reserve and other reproductive factors.
How Can Endometriosis Affect Fertility?
Endometriosis may interfere with fertility in several ways. Inflammation within the pelvis may affect the reproductive environment, while scar tissue and adhesions can alter the normal anatomy of the ovaries and fallopian tubes.
In more advanced cases, adhesions may make it more difficult for the egg and sperm to meet. Endometriomas affecting the ovaries may also be associated with reduced ovarian reserve or impaired ovarian function.
However, the effect of endometriosis on fertility differs considerably between women, and infertility may result from a combination of factors rather than a single mechanism.
Can You Get Pregnant Naturally With Endometriosis?
Yes. Many women with endometriosis can become pregnant naturally, particularly when the disease is mild and there are no additional fertility problems.
The chances of natural conception depend on several factors, including the woman’s age, ovarian reserve, the condition of the fallopian tubes, the severity of endometriosis and the sperm parameters of the male partner.
When pregnancy does not occur naturally, a fertility assessment can help determine whether assisted reproductive treatment should be considered.
Endometriosis and IVF
In vitro fertilization (IVF) may be recommended for women with endometriosis who experience difficulty becoming pregnant, especially when other fertility factors are also present.
IVF allows eggs to be fertilized in the laboratory, reducing the need for the egg and sperm to meet naturally within the fallopian tubes. This can be particularly useful when endometriosis has affected the pelvic anatomy or tubal function.
The decision to proceed with IVF is individualized and depends on factors such as age, ovarian reserve, duration of infertility, previous treatments and the extent of endometriosis.
How Is Endometriosis Diagnosed?
Diagnosing endometriosis usually begins with a detailed medical history and evaluation of symptoms. The doctor may ask about menstrual pain, pelvic discomfort, pain during intercourse, bowel or urinary symptoms and any difficulties with becoming pregnant.
Ultrasound and MRI
A transvaginal ultrasound is commonly used as part of the diagnostic evaluation. It can help identify ovarian endometriomas and may also detect some forms of deep endometriosis.
In selected cases, magnetic resonance imaging (MRI) may provide additional information, particularly when deep endometriosis or involvement of surrounding pelvic organs is suspected.
However, normal imaging does not completely exclude endometriosis, especially when superficial disease is present.
Laparoscopy for Endometriosis
Laparoscopy is a minimally invasive surgical procedure that allows the doctor to directly examine the pelvic organs through a small camera inserted through the abdomen.
It is not required for every woman with suspected endometriosis. Laparoscopy may be considered when imaging is inconclusive, symptoms persist despite treatment or surgical treatment is considered appropriate.
One important advantage is that, when endometriosis is identified during laparoscopy, the surgeon may be able to treat the lesions, adhesions or endometriomas during the same procedure.
How Is Endometriosis Treated?
Treatment for endometriosis is individualized according to the severity of symptoms, the location and extent of the disease, the woman’s age and whether she is currently trying to become pregnant.
Treatment options may include medication, laparoscopic surgery and fertility treatment.
Medical Treatment
Medication is mainly used to control pain and reduce the activity of endometriosis. Treatment may include pain-relieving medication and hormonal therapies, such as combined hormonal contraceptives, progestins or other hormone-modulating treatments.
Hormonal treatment can help reduce symptoms in many women, but it is generally not suitable while actively trying to conceive because many hormonal therapies suppress ovulation or prevent pregnancy during treatment.
Laparoscopic Surgery
Laparoscopic surgery may be considered when endometriosis causes significant symptoms, ovarian endometriomas, adhesions or anatomical changes within the pelvis.
During laparoscopy, endometriotic lesions and adhesions may be removed or treated while preserving healthy reproductive tissue whenever possible.
For women who wish to become pregnant, the decision to operate on an ovarian endometrioma requires careful evaluation. Surgery is not automatically recommended before IVF, as ovarian surgery may also affect healthy ovarian tissue and ovarian reserve.
Fertility Treatment
When endometriosis is associated with difficulty becoming pregnant, fertility treatment can be considered according to the individual circumstances.
Depending on age, ovarian reserve, tubal function, sperm quality and the severity of endometriosis, treatment options may include ovulation induction, intrauterine insemination (IUI) or in vitro fertilization (IVF).
The objective is to select the approach that offers the best chance of pregnancy while taking into account both the endometriosis itself and the couple’s overall fertility evaluation.
Frequently Asked Questions About Endometriosis
Can endometriosis cause infertility?
Yes, endometriosis can make it more difficult for some women to become pregnant. Inflammation, adhesions, ovarian endometriomas and changes in the anatomy of the pelvis may affect fertility. However, many women with endometriosis are still able to conceive naturally.
Can I get pregnant naturally with endometriosis?
Yes. A diagnosis of endometriosis does not automatically mean that IVF will be necessary. The chances of natural conception depend on factors such as age, ovarian reserve, tubal function, the severity of endometriosis and the presence of any additional fertility problems.
Does endometriosis always cause symptoms?
No. Some women with endometriosis experience significant pelvic pain, painful periods or pain during intercourse, while others have mild symptoms or no symptoms at all. In some cases, the condition is discovered during an investigation for infertility.
Can endometriosis be diagnosed with an ultrasound?
A transvaginal ultrasound can identify ovarian endometriomas and some forms of deep endometriosis. However, a normal ultrasound does not necessarily exclude the condition, particularly when superficial endometriosis is present.
Do I need laparoscopy to diagnose endometriosis?
Not always. Endometriosis may be diagnosed based on symptoms, medical history and imaging such as ultrasound or MRI. Laparoscopy may be considered in selected cases and can also allow endometriotic lesions or adhesions to be treated during the same procedure.
Is IVF recommended for women with endometriosis?
IVF may be recommended when endometriosis is associated with infertility, but it is not necessary for every woman with the condition. The decision depends on age, ovarian reserve, tubal function, duration of infertility, sperm parameters, previous treatments and the extent of endometriosis.
