Endometriosis is when the type of cells that would normally line your uterus are found outside of your uterus. This may cause pain in your abdominal and pelvic areas, especially during your period. Patients also may have bladder pain, and pain during sex. Endometriosis can make it harder to get pregnant, too.
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Endometriosis occurs when cells that you would normally find in the lining of the uterus grow outside of your uterus wall. Those cells can form growths (endometrial tissues) in parts of your belly and pelvic areas, including your:
Although these growths aren’t cancerous, they can cause inflammation and scar tissue.
Hormones make endometrial tissues swell and bleed during your period, the same way your uterus does. Endometriosis can be very painful. It can also make getting pregnant more difficult.
There’s no cure for endometriosis. But diagnosing and treating it can reduce pain and may keep it from becoming severe. Doctors can treat symptoms with over-the-counter medicine, hormones, and surgery.
One in 10 people with a uterus will have endometriosis.
We don’t know what causes endometriosis; there are many theories, which include:
Some health conditions may increase your odds of having endometriosis. These include:
Your health history may play a role in whether you get endometriosis.
You’re more likely to get endometriosis if you:
The two biggest issues endometriosis causes are painful periods and difficulty getting pregnant. About half of people with endometriosis have a hard time getting pregnant.
Endometriosis may also increase your risk of ovarian cancer a little bit. However, the odds of developing ovarian cancer during your lifetime are still very low.
There’s no way to prevent endometriosis.
Endometriosis doesn’t always cause symptoms. But most people with endometriosis have pelvic pain that's usually worse during their period.
If you have endometriosis, you might also experience:
Endometriosis symptoms can show up any time after you start having your period. Many women will have symptoms for several decades. Your symptoms may ease or stop around menopause, but menopause doesn’t guarantee an end to endometriosis issues.
There is currently no screening test for endometriosis. However, doctors may ask you questions about symptoms linked to endometriosis during a check-up. Make an appointment to see an OB-GYN (obstetrician-gynecologist) if:
See a doctor right away if:
If your OB-GYN suspects you may have endometriosis, they'll do a pelvic exam to check your vagina and pelvic area for lumps and painful spots.
The only way to confirm you have endometriosis is through laparoscopic surgery. During laparoscopy, a doctor makes a small incision in your belly. They use a laparoscope tool to look for endometriosis growths in your abdominal and pelvic areas. They may take a small tissue sample (biopsy) to confirm the growth is endometriosis.
Your doctor may suggest an ultrasound, which uses sound waves to look at your pelvic area. An ultrasound won't find superficial/early-stage endometriosis, but it can find endometriomas, the blood-filled cysts that indicate more advanced disease.
Endometriomas are usually located in the ovaries and are one form of endometriosis that can be seen on ultrasound. Even though you may have a normal-looking ultrasound, this does not mean that you don’t have endometriosis.
Your doctor may also recommend an MRI to help with laparoscopy or surgery.
Although endometriosis isn't fatal, it is a long-term condition. It can have a negative impact on your mood and mental health, sex life, relationships, and career.
There’s no cure for endometriosis, but treating it can ease your symptoms and improve your quality of life.
Your doctor may recommend pain management treatments, including:
Over-the-counter pain medicine called nonsteroidal anti-inflammatories (NSAIDs) can relieve endometriosis-related pain and cramping.
NSAIDs used for endometriosis include:
Hormone levels rise and fall during menstrual cycles, which can cause endometriosis tissue to thicken, break down, and bleed. Hormone treatments reduce the fluctuation of these hormones.
Hormone therapy doesn’t cure endometriosis. You'll have to keep using it to continue treating your symptoms.
Hormone therapies for endometriosis include:
When you plan to have children will impact the type of treatment your doctor recommends. For example, you wouldn’t use most hormone therapies if you were trying to get pregnant.
If you’re having a lot of trouble getting pregnant, your doctor may recommend surgery. Removing endometriosis lesions can sometimes improve fertility. They may also refer you to a reproductive endocrinologist, a specialist who treats infertility.
Your doctor may recommend surgery to remove endometrial tissue if:
The length of your surgery depends on how severe your endometriosis is. If doctors remove a lot of tissue, you may need to stay overnight at the hospital. However, most surgeries for endometriosis are same-day procedures.
Most of the time, doctors use laparoscopic surgery to treat endometriosis. With laparoscopic surgery, a doctor makes small cuts in your belly and uses a laparoscope and surgical tools to remove tissue.
Recovery from surgery for endometriosis can take several days to more than a month.
If you have endometriosis symptoms, you’ll probably need ongoing treatment. Pain medicine and hormone therapy are usually effective if you keep taking them.
Surgery eases pain for most women with endometriosis.
Last reviewed by a UPMC medical professional on 2024-09-05.
