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Medical Condition

Endometriosis

GynecologyICD-10: N80.9
Endometriosis

Quick answer

Endometriosis is a condition in which tissue similar to the uterine lining grows outside the uterus, often causing pelvic pain, painful periods, and fertility problems. At Acibadem in Turkey, diagnosis may include gynecologic evaluation and imaging, and treatment is tailored to symptoms and fertility goals with options such as pain management, hormone therapy, and minimally invasive surgery.

Medically reviewed by the Acıbadem International Medical Board — June 20, 2026

Dr. Bahadır Kaynarkaya, MD Dr. Şule Eren, MD

Overview

Endometriosis is a gynecological condition in which tissue similar to the lining of the uterus grows outside the uterus. This tissue may be found on the ovaries, fallopian tubes, outer surface of the uterus, pelvic lining, bowel, or bladder. Like the normal uterine lining, it can respond to monthly hormonal changes, which may lead to inflammation, irritation, and scar tissue over time.

Endometriosis can affect people differently. Some have mild symptoms, while others experience significant pain or fertility concerns. The condition is long-term, but many patients can manage symptoms and improve daily comfort with appropriate medical care. A personalized approach is important because symptoms, life plans, and treatment goals vary from person to person.

Symptoms

The most common symptom of endometriosis is pelvic pain, often related to menstrual periods. However, the severity of pain does not always match the extent of the condition. Some people with extensive endometriosis may have few symptoms, while others with smaller areas may have severe discomfort.

  • Painful menstrual periods that may worsen over time
  • Pelvic pain between periods
  • Pain during or after sexual intercourse
  • Pain with bowel movements or urination, especially during menstruation
  • Heavy menstrual bleeding or bleeding between periods
  • Fatigue, bloating, nausea, constipation, or diarrhea, especially around periods
  • Difficulty becoming pregnant

These symptoms can also occur with other gynecological or digestive conditions. A medical evaluation is needed to understand the cause and discuss the most suitable care options.

Causes and Risk Factors

The exact cause of endometriosis is not fully understood. Several theories may explain how it develops, including menstrual tissue flowing backward through the fallopian tubes into the pelvis, changes in certain cells that make them behave like uterine lining cells, immune system factors, and genetic influences.

Endometriosis can occur in anyone who menstruates, but certain factors may increase the likelihood of developing it. These include having a family history of endometriosis, starting periods at an early age, having shorter menstrual cycles, having heavy or prolonged periods, or conditions that affect normal menstrual flow. The condition is most often recognized during the reproductive years, although symptoms may begin earlier.

Endometriosis is not caused by poor hygiene, personal behavior, or lifestyle choices. While lifestyle measures may help some people cope with symptoms, they do not replace medical assessment and treatment when symptoms are persistent or severe.

Diagnosis

Diagnosing endometriosis begins with a detailed discussion of symptoms, menstrual history, pain patterns, fertility plans, and general health. A gynecological examination may be recommended to check for tenderness, pelvic masses, or other signs that need further evaluation.

Imaging tests such as ultrasound or magnetic resonance imaging may help identify ovarian cysts related to endometriosis or deeper pelvic disease. However, smaller areas of endometriosis may not always be visible on imaging. In some cases, a minimally invasive surgical procedure may be considered to view the pelvic organs directly and, when appropriate, take tissue for confirmation.

Because symptoms can overlap with conditions such as pelvic inflammatory disease, ovarian cysts, irritable bowel syndrome, urinary conditions, or fibroids, diagnosis may take time. Keeping a record of symptoms, menstrual timing, and how pain affects daily life can help the care team understand the pattern more clearly.

Treatment Options

Treatment for endometriosis depends on symptom severity, age, overall health, previous treatments, and whether pregnancy is desired now or in the future. The main goals are to reduce pain, manage disease-related problems, improve quality of life, and address fertility concerns when present.

Medical treatment may include pain-relief approaches and hormone-based therapies that aim to reduce the activity of endometriosis tissue. These options are selected by a physician based on individual needs, risks, and preferences. Some treatments may not be suitable for people trying to become pregnant, so fertility plans should be discussed openly.

Surgical treatment may be considered when symptoms are severe, when endometriosis affects organs, when an ovarian cyst is present, or when other treatments have not provided enough relief. Surgery is often performed using minimally invasive techniques, depending on the case. The aim may be to remove or reduce endometriosis tissue, treat scar tissue, or manage cysts while preserving healthy organs whenever possible.

For patients with fertility concerns, care may involve a gynecologist with expertise in reproductive health. Options vary depending on age, ovarian reserve, partner factors, and the extent of endometriosis. Supportive care such as pelvic floor physiotherapy, nutrition guidance, psychological support, and pain management strategies may also help some patients as part of a broader care plan.

When to See a Doctor

It is advisable to see a gynecologist if menstrual pain interferes with school, work, sleep, or daily activities; if pelvic pain is persistent; or if pain occurs during sex, urination, or bowel movements. Medical advice is also important for heavy or irregular bleeding, unexplained fatigue with pelvic symptoms, or difficulty becoming pregnant.

Seek prompt medical attention for sudden, severe pelvic pain, fainting, fever, vomiting, or heavy bleeding, as these symptoms may indicate an urgent condition. Endometriosis can be challenging, but patients do not need to manage symptoms alone. A professional evaluation can help clarify the possible causes and guide an individualized care plan.

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