Understanding Ovarian Endometriomas and Their Effects on Reproductive Health

Written by Medicover Team and Medically Reviewed by Dr B Radhika , Gynecologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Ovarian endometriomas, commonly called "chocolate cysts," are cysts that develop on the ovaries when tissue similar to the lining of the uterus grows outside the uterus. This tissue responds to hormonal changes during the menstrual cycle and can bleed repeatedly, causing a cyst filled with thick, dark blood. Ovarian endometriomas are a form of endometriosis and may cause pelvic pain, painful periods, pain during intercourse, or difficulty conceiving.

What Are the Symptoms of Ovarian Endometriomas?

Some ovarian endometriomas do not cause symptoms and may be found during a routine examination or imaging test. When symptoms occur, they may vary depending on the size of the cyst and the extent of endometriosis.

Common Symptoms

Pelvic pain, especially during menstruation
Painful periods: Menstrual pain may be severe or become worse over time
Pain during intercourse: Deep pelvic pain may occur during or after sexual activity
Menstrual irregularities or heavy menstrual bleeding
Difficulty conceiving: Endometriosis and ovarian endometriomas may affect fertility
Pelvic pressure or discomfort: Larger cysts may cause a feeling of fullness or pressure

What Are the Causes of Ovarian Endometriomas?

The exact cause of ovarian endometriomas is not fully understood. They develop as a result of endometriosis, in which tissue similar to the uterine lining grows outside the uterus and can become established on the ovaries.

Possible Causes and Contributing Factors

Retrograde menstruation: Menstrual blood and endometrial-like cells may flow backward through the fallopian tubes into the pelvic cavity, where they can implant and grow.
Embryonic cell changes: Certain cells present during development may later develop into endometrial-like tissue.
Immune system factors: Changes in immune responses may allow endometrial-like tissue outside the uterus to persist and grow.
Genetic factors: Endometriosis and ovarian endometriomas may occur more often in people with a family history of the condition.

When to See a Doctor for Ovarian Endometriomas?

See a gynecologist if you have persistent pelvic pain, painful periods, pain during intercourse, or difficulty conceiving. Early evaluation can help identify ovarian endometriomas and guide treatment based on your symptoms, cyst characteristics, and fertility goals.

Persistent or worsening pelvic pain, especially during periods
Heavy or irregular menstrual bleeding
Pain during intercourse
Difficulty conceiving or concerns about fertility
A known ovarian cyst that is growing or causing symptoms

Get medical help immediately if:

Sudden, severe pelvic or abdominal pain
Severe pain with nausea or vomiting
Fainting, marked weakness, or other symptoms suggesting internal bleeding
Sudden worsening of symptoms in someone with a known ovarian cyst

A gynecologist usually evaluates and treats ovarian endometriomas. A gynecologic surgeon may be involved when surgery is needed, while a fertility specialist or reproductive endocrinologist may help when endometriomas are affecting conception or fertility preservation is being considered.

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How Are Ovarian Endometriomas Diagnosed?

Diagnosis of ovarian endometriomas involves reviewing symptoms and medical history along with a pelvic examination and imaging tests. The doctor may also assess fertility concerns and look for signs of endometriosis elsewhere in the pelvis.

Ultrasound

Transvaginal ultrasound is commonly used to identify ovarian endometriomas and assess their size and appearance. It can also help distinguish them from other types of ovarian cysts.

Magnetic Resonance Imaging (MRI)

MRI provides detailed images of the pelvis and may be recommended when ultrasound findings are unclear or when the doctor needs to assess the extent of endometriosis.

Laparoscopy

Laparoscopy is a minimally invasive surgical procedure that allows direct examination of the pelvic organs. It may be considered when the diagnosis remains uncertain or when surgical treatment is planned.

Additional Tests

Blood tests or other investigations may sometimes be recommended to evaluate symptoms or help rule out other causes of an ovarian mass. Imaging findings and clinical assessment are used together to determine the most appropriate management.

What Are the Treatment Options for Ovarian Endometriomas?

Treatment for ovarian endometriomas depends on the severity of symptoms, cyst size and appearance, age, previous treatment, and fertility goals. Some small or asymptomatic endometriomas can be monitored, while others may require medication or surgery.

Medical Management

Hormonal therapy: Birth control pills, progestins, or other hormone-based treatments may help control pain and reduce endometriosis-related symptoms. They do not remove an existing endometrioma.
Pain management: Nonsteroidal anti-inflammatory drugs (NSAIDs) may be recommended to relieve menstrual and pelvic pain.

Monitoring

Small endometriomas that are not causing significant symptoms may be monitored with periodic examinations and ultrasound. The follow-up plan depends on the cyst's size, appearance, symptoms, and changes over time.

Surgical Treatment

Surgery may be considered when an endometrioma causes significant or persistent symptoms, is large or changing, has concerning imaging features, or interferes with treatment planning. Laparoscopic surgery is commonly used when appropriate.

Laparoscopic Cystectomy

Laparoscopic cystectomy removes the cyst while attempting to preserve healthy ovarian tissue. Because ovarian surgery can affect ovarian reserve, the potential benefits and risks should be discussed carefully, particularly in women who wish to become pregnant.

Fertility Considerations

Ovarian endometriomas can be associated with infertility. Treatment should therefore take reproductive goals into account. Some women may benefit from consultation with a fertility specialist, and assisted reproductive techniques such as in vitro fertilization (IVF) may be considered when appropriate.

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What Are the Risk Factors for Ovarian Endometriomas?

Ovarian endometriomas develop in people with endometriosis, and certain factors may be associated with a higher likelihood of developing endometriosis or ovarian involvement.

Personal history of endometriosis
Family history of endometriosis
Starting menstruation at a younger age
Long or heavy menstrual periods
Short menstrual cycles
Conditions that interfere with normal menstrual blood flow

What Are the Complications of Ovarian Endometriomas?

Ovarian endometriomas can sometimes cause complications, particularly when they are large, persistent, or associated with extensive endometriosis.

Chronic pelvic pain
Difficulty conceiving or infertility
Adhesions and scarring around the pelvic organs
Reduced ovarian reserve, particularly in some cases of ovarian surgery
Cyst rupture, which can cause sudden pelvic pain
Ovarian torsion, although this is uncommon
Recurrence of endometriomas after treatment

What Is the Recovery Process After Ovarian Endometrioma Treatment?

Recovery depends on whether the endometrioma is being monitored, treated with medication, or removed surgically. Recovery after laparoscopic surgery is generally shorter than after open abdominal surgery, but the exact timeline varies between individuals.

After Surgery

Follow the gynecologist's instructions for wound and activity care
Avoid strenuous activity and heavy lifting until cleared by the doctor
Attend scheduled follow-up appointments
Take prescribed pain medicines as directed
Discuss menstrual symptoms, fertility plans, and recurrence monitoring during follow-up

Endometriosis can recur even after an endometrioma has been treated, so long-term follow-up may be recommended based on individual risk and symptoms.

What Precautions Can Help Manage Ovarian Endometriomas?

There is no guaranteed way to prevent ovarian endometriomas, but regular gynecological care and timely evaluation of symptoms can help with early diagnosis and management.

Do not ignore persistent or severe menstrual or pelvic pain
Attend recommended gynecological follow-ups
Follow the treatment plan prescribed for endometriosis
Discuss fertility plans early if pregnancy is desired
Seek medical evaluation for a known ovarian cyst that changes or becomes painful

Our Experience Treating Ovarian Endometriomas

At Medicover, our gynecology team provides evaluation and treatment for ovarian endometriomas based on each patient's symptoms, cyst characteristics, and reproductive goals. Care may include advanced pelvic imaging, medical treatment, minimally invasive surgery, and fertility guidance when needed.

Our approach focuses on relieving symptoms, protecting ovarian health where possible, and providing appropriate follow-up to support long-term reproductive and overall health.

Frequently Asked Questions

1. What are the symptoms of ovarian endometrioma?

Symptoms may include pelvic pain, painful periods, pain during intercourse, painful bowel movements, and infertility. Some women may have no symptoms.

2. What causes ovarian endometrioma?

An ovarian endometrioma develops when endometriosis affects an ovary, causing endometrial-like tissue to grow and form a cyst filled with old blood.

3. How is ovarian endometrioma diagnosed?

Diagnosis usually involves a pelvic examination and ultrasound. MRI may be used for further evaluation, while laparoscopy can confirm endometriosis when needed.

4. How is ovarian endometrioma treated?

Treatment depends on symptoms, cyst size, age, and fertility plans. Options include pain-relieving medicines, hormonal therapy, monitoring, or laparoscopic surgery to remove the cyst.

5. Can ovarian endometrioma cause infertility?

Yes. Ovarian endometriomas can affect ovarian tissue and egg quality and may contribute to infertility. Treatment should be individualized, especially for women planning pregnancy.

6. Can an ovarian endometrioma go away on its own?

Ovarian endometriomas generally do not disappear on their own and may remain stable or grow over time. Regular monitoring can help assess changes.

7. Is an ovarian endometrioma dangerous?

Most ovarian endometriomas are benign, but they can cause chronic pelvic pain, infertility, ovarian damage, or complications such as cyst rupture or ovarian torsion.

8. Can ovarian endometrioma come back after treatment?

Yes. Ovarian endometriomas can recur after treatment, particularly because endometriosis is a chronic condition. Follow-up care and appropriate hormonal treatment may help reduce recurrence.