Overview
The short answer: endometriosis is a common, non-cancerous condition in which tissue similar to the womb lining grows outside the womb, often on the ovaries and the lining of the pelvis. It can cause painful periods, pain during sex and difficulty getting pregnant. It is not cancer. It is linked with a small rise in the chance of some ovarian cancers, but the overall chance stays low and most women with endometriosis never develop cancer. Many women are treated with medicines; surgery is for selected situations.
In Hindi it is often searched as endometriosis kya hai (एंडोमेट्रियोसिस क्या है). A cyst on the ovary caused by endometriosis is called an endometrioma or chocolate cyst (चॉकलेट सिस्ट), because it contains old, dark blood.
Endometriosis is a condition in which tissue similar to the lining of the uterus grows outside the uterus. It can affect the ovaries, pelvic lining, ligaments behind the uterus, bowel, bladder, or other pelvic structures and may lead to inflammation, scarring, or chronic pain.
The condition is common and can range from mild to more disruptive. The main goal is to understand how symptoms are affecting daily life, whether fertility is a concern, and what kind of evaluation or treatment is appropriate.
Trust Signals
- Specialty: Gynecologic Oncology / Pelvic Pain Evaluation
Symptoms
Symptoms may include painful periods, pelvic pain between periods, pain during intercourse, pain with bowel movements, pain with urination around menstruation, bloating, fatigue, or difficulty conceiving. Some people with endometriosis have significant symptoms, while others have little pain and are diagnosed only during fertility evaluation or surgery.
Pelvic pain is one of the most common reasons patients seek care, but the exact symptom pattern can vary widely.
Causes and Why It Happens
The exact cause of endometriosis is not fully understood. Possible contributors include retrograde menstruation (period blood flowing backwards through the tubes into the pelvis), immune-system factors, inflammation, genetic tendency, and hormonal influences. In some patients, ovarian endometriomas or deep pelvic disease can develop as part of the condition.
Because the biology is complex, endometriosis should be understood as a chronic inflammatory condition rather than simply a painful period problem.
Diagnosis
Diagnosis begins with symptom history and pelvic assessment. Ultrasound may identify ovarian endometriomas or other pelvic findings, and MRI may be used in selected cases when deeper disease is suspected. In some patients, the diagnosis is confirmed during laparoscopy (keyhole surgery with a small camera).
Not every case needs surgery to begin treatment. The right evaluation depends on symptoms, fertility goals, physical findings, and how much the condition is affecting quality of life.
Treatment Options
Treatment may include pain relief, hormonal treatment, symptom monitoring, fertility-directed planning, or surgery in selected cases. The choice depends on pain severity, age, fertility goals, ovarian findings, and whether symptoms are responding to medical treatment.
Not every patient needs surgery, and not every surgery has the same goal. Some treatment plans focus on pain control, while others focus on fertility or management of ovarian disease. For more detail on medicines and surgery, see endometriosis treatment options.
When to Worry
Medical review is important when pelvic pain becomes persistent, periods become increasingly painful or heavy, bowel or bladder symptoms worsen, fertility becomes a concern, or an ovarian mass is found on imaging. Sudden severe pain can also need urgent assessment, especially if a cyst complication or another acute pelvic problem is possible.
Endometriosis itself is not cancer, but some symptoms can overlap with other gynecologic conditions, so ongoing or worsening symptoms should not be ignored.
Women with endometriosis, especially those with chocolate cysts on the ovary, have a slightly higher chance of certain ovarian cancers than other women, but the overall chance is still low. A cyst is looked at more closely if it is growing, has solid parts on the scan, or appears after menopause (see ovarian cysts). New bloating, feeling full quickly or pelvic pain on most days that is different from your usual endometriosis pain should also be checked; the ovarian cancer page explains these signs. Any bleeding after menopause needs a check too.
Why Specialist Care Matters
Specialist review can be important when symptoms are severe, fertility is part of the discussion, imaging suggests ovarian involvement, or prior treatment has not helped enough. Care planning may need coordination between pain management, fertility goals, imaging findings, and surgical decision-making.
The best plan is individualized. It depends on the patient’s symptoms, reproductive goals, and whether the main problem is pain, ovarian disease, bowel or bladder symptoms, or difficulty conceiving. If you are referred to a specialist, preparing for a specialist appointment, for example bringing your scan reports and a list of your medicines, makes the visit more useful.
Endometriosis FAQs
- What is endometriosis?
Endometriosis is a condition in which tissue similar to the lining of the uterus grows outside the uterus and can cause pain, inflammation, scarring, or fertility-related problems.
- Can endometriosis cause pelvic pain?
Yes. Pelvic pain is one of the most common symptoms of endometriosis, especially around periods, but it can also happen at other times.
- How is endometriosis diagnosed?
Diagnosis may involve symptom review, pelvic examination, ultrasound, MRI in selected cases, and sometimes laparoscopy. The exact workup depends on the symptoms and clinical suspicion.
- Does endometriosis always need surgery?
No. Many patients are treated first with pain relief, hormonal treatment, or monitoring. Surgery is considered in selected situations, especially when symptoms are significant, fertility is a concern, or ovarian disease needs closer review.
- When should I see a specialist for endometriosis?
Specialist review may help when pain is persistent, treatment is not working well enough, fertility is a concern, or imaging suggests an ovarian endometrioma or deeper pelvic disease.
- Can endometriosis turn into cancer?
Endometriosis is not cancer, and most women with it never get cancer. It is linked with a small rise in the chance of some ovarian cancers, mainly in women with chocolate cysts, but the overall chance remains low. Regular review of any ovarian cyst and reporting new or changing symptoms are usually enough; routine removal of the ovaries is not needed for this reason alone.
- Is a chocolate cyst cancer?
Almost always, no. A chocolate cyst (endometrioma) is a non-cancerous cyst filled with old blood. Your doctor will look more closely if the cyst is growing, has solid parts on the scan, or appears after menopause. Whether it needs surgery depends on its size, your pain and your pregnancy plans.
- Can I get pregnant with endometriosis?
Many women with endometriosis get pregnant naturally. In some women it makes conceiving harder. If you are trying for a baby, discuss it with your gynaecologist or a fertility specialist early, because this affects which treatment is best for you.