Endometriosis is a chronic, often painful condition in which tissue similar to the uterine lining grows outside the uterus — on the ovaries, fallopian tubes, bowel, bladder, or other pelvic organs. It affects approximately 1 in 10 women of reproductive age worldwide, yet the average time to diagnosis is 7–10 years. Understanding endometriosis symptoms is the first step toward getting the care you need.
What Is Endometriosis?
In a normal menstrual cycle, the uterine lining (endometrium) thickens, breaks down, and sheds as a period. In endometriosis, similar tissue grows in locations where it cannot exit the body. This trapped tissue becomes inflamed, can form scar tissue (adhesions), and may cause organs to stick together. The result is chronic pain, inflammation, and in many cases, difficulty conceiving.
Endometriosis Symptoms
Symptoms vary widely — some women have severe pain with minimal lesions, while others have extensive endometriosis but few symptoms. The most common signs include:
Pelvic Pain
The most characteristic symptom. Pain may be present throughout the month but typically worsens during menstruation (dysmenorrhea). Endometriosis pain is often described as more severe than typical period cramps and may not improve with standard over-the-counter pain relievers.
Pain During or After Sex (Dyspareunia)
Deep pain during intercourse or lingering pain afterward is a hallmark symptom, particularly when endometriosis affects the area behind the uterus (the pouch of Douglas) or the uterosacral ligaments.
Painful Bowel Movements or Urination
When endometriosis affects the bowel or bladder, you may experience pain during bowel movements or urination — especially during your period. This is sometimes confused with irritable bowel syndrome (IBS) or interstitial cystitis.
Heavy or Irregular Periods
Menorrhagia (heavy periods) and irregular bleeding between periods are common in women with endometriosis. Tracking your period using a cycle app can provide useful data for your gynecologist.
Infertility
Endometriosis is found in 20–40% of women who have difficulty conceiving. It can affect fertility by causing structural damage to the fallopian tubes and ovaries, altering the environment inside the pelvis, and affecting egg quality. However, many women with endometriosis do conceive, particularly with medical support.
Other Symptoms
- Fatigue, especially during menstruation
- Bloating (sometimes called “endo belly”)
- Nausea or vomiting around periods
- Lower back pain
- Shoulder pain (if endometriosis affects the diaphragm)
How Is Endometriosis Diagnosed?
Endometriosis cannot be definitively diagnosed by symptoms alone or with standard imaging. The only confirmed diagnostic method is laparoscopy — a minimally invasive surgical procedure in which a gynecologist inserts a small camera through the abdomen to visually inspect the pelvic organs and take a tissue biopsy.
However, before recommending surgery, your gynecologist will likely:
- Take a detailed symptom history
- Perform a pelvic exam to check for tenderness or nodules
- Order a transvaginal ultrasound (to detect ovarian endometriomas — cysts filled with old blood)
- Possibly order an MRI for more detailed imaging
Many gynecologists now use a clinical diagnosis approach — treating based on symptoms before laparoscopy — to avoid unnecessary surgery, particularly when symptoms clearly suggest endometriosis.
Endometriosis Staging
Endometriosis is classified into four stages (I–IV) based on the extent and location of lesions, depth of implants, and presence of adhesions:
- Stage I (Minimal): Small, isolated lesions with no significant adhesions
- Stage II (Mild): More lesions, slightly deeper penetration
- Stage III (Moderate): Deep implants, endometriomas on one or both ovaries, some adhesions
- Stage IV (Severe): Extensive deep implants, large ovarian cysts, dense adhesions between organs
Importantly, stage does not always correlate with pain severity — a woman with Stage I can have debilitating pain, while Stage IV may cause minimal symptoms.
Treatment Options for Endometriosis
There is currently no cure for endometriosis, but symptoms can be managed effectively. Treatment is individualized based on symptom severity, age, desire for future pregnancy, and response to previous treatments.
Pain Management
- NSAIDs (ibuprofen, naproxen) are first-line for pain relief
- Hormonal contraceptives (pill, patch, hormonal IUD) suppress the menstrual cycle and reduce endometriosis growth
- GnRH agonists (Lupron) create a temporary menopause-like state to shrink lesions — used short-term due to bone density effects
- Progestins (norethindrone, dienogest) suppress endometrial tissue
Surgical Treatment
- Laparoscopic excision: The gold standard for removing endometriosis lesions while preserving fertility. Performed by a gynecologist or endometriosis specialist.
- Laparoscopic ablation: Burns away surface lesions — less effective than excision but less complex
- Hysterectomy: Removal of the uterus (sometimes with ovaries) — considered a last resort for severe cases not responding to other treatments. Does not guarantee pain relief if endometriosis is on other organs.
Fertility Treatment
Women with endometriosis who want to conceive may be referred to a reproductive endocrinologist (fertility specialist). Treatment options include ovarian stimulation, intrauterine insemination (IUI), and in vitro fertilization (IVF), depending on the severity of endometriosis and other fertility factors.
Living with Endometriosis
Beyond medical treatment, lifestyle strategies can help manage symptoms:
- Anti-inflammatory diet (reducing red meat, processed foods, sugar)
- Regular moderate exercise
- Pelvic floor physical therapy
- Stress management and mind-body practices
- Connecting with endometriosis support communities
Find a Gynecologist Specializing in Endometriosis
If you suspect you have endometriosis, don’t let your concerns be dismissed. Seek a gynecologist with experience in diagnosing and treating endometriosis — ideally one who performs laparoscopic excision surgery.
Use our verified directory to find a gynecologist near you:
- Gynecologists in the United States
- Gynecologists in Spain
- Gynecologists in Argentina
- Gynecologists in Colombia
Also read: 10 warning signs you need to see a gynecologist | How to find a gynecologist near me