Connect with others who understand.

sign up log in
About MyEndometriosisTeam

Stages of Endometriosis

Updated on August 21, 2018

Article written by
Kelly Crumrin

There are four commonly recognized stages of endometriosis. Endometriosis is staged based on the extent and severity of disease activity. Note that the stage of the endometriosis does not reflect the symptoms experienced – either pain, infertility, or other symptoms – it is based on the doctor’s observation of damage during diagnosis. For example, it is possible for a woman in stage l to experience severe pain, while a woman in stage IV may have little to no pain.

The majority of women with endometriosis are stage l or ll. Endometriosis can progress over time, especially if it is not treated.

The Four Stages of Endometriosis

The stage of endometriosis is based on the location, amount, depth of infiltration, and size of the endometrial implants. Criteria include how far the endometrial tissue has spread in the pelvic cavity, which organs and structures are affected, how many adhesions (one organ or structure becoming stuck to another) are present, and whether the fallopian tubes have become blocked.

The classification is made during the same surgical procedure used to confirm the diagnosis, which is called a laparoscopy. During the surgery, a surgeon makes small incisions in the abdomen and inserts a tiny camera to observe the reproductive organs, intestines, and other surfaces.

Stage I (Minimal)

In the minimal stage, there may be inflammation in the pelvic cavity and small lesions on organs. There are no adhesions.

Stage II (Mild)

During the mild stage, lesions are more common, but adhesions are limited. There may be shallow implants on the ovaries.

Stage III (Moderate)

In the moderate stage, there are deeper implants on the ovaries and the walls of the pelvic cavity. The fallopian tubes may be involved. Lesions and scarring may be widespread, and there are multiple adhesions.

Stage IV (Severe)

The severe stage describes disease in which deep endometrial implants are found in the ovaries and pelvic lining. The ovaries may be affected by endometriomas (blood-filled cysts). Adhesions can cause distortion of the organs. The bowel may be involved.

Condition Guide

Resources

External References

Kelly leads the creation of content that educates and empowers people with chronic illnesses. Learn more about her here.

A MyEndometriosisTeam Member said:

Ladies, please have excision. It's the only chance we have now until we have genetic testing and counseling.

Lupron is a chemotherapy drug for men with… read more

posted 2 months ago

hug (1)

Recent articles

Ajax loader trans
Article written by Kelly Crumrin On Friday, December 11, the U.S. Food and Drug Administration...

Endometriosis and the COVID-19 Vaccine: What We Know

Article written by Kelly Crumrin On Friday, December 11, the U.S. Food and Drug Administration...
Ajax loader trans
Article written by Alison Channon The 2020 fall and winter holiday season will be different than...

How To Have a Safe Holiday With Endometriosis During COVID-19

Article written by Alison Channon The 2020 fall and winter holiday season will be different than...
Ajax loader trans
Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis is a painful,...

What Is Endometriosis?

Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis is a painful,...
Ajax loader trans
Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenWhile there is currently no...

Treatments for Endometriosis

Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenWhile there is currently no...
Ajax loader trans
Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis symptoms are...

Symptoms of Endometriosis

Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis symptoms are...
Ajax loader trans
Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis can be...

Endometriosis – The Path to Diagnosis

Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenEndometriosis can be...
Ajax loader trans
Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenThe endometrium is the...

What Causes Endometriosis?

Article written by Kelly Crumrin Medically reviewed by Dr. Peter ChenThe endometrium is the...
Ajax loader trans
Article written by Nyaka MwanzaUncomfortable, painful, embarrassing. These are words...

Endo Belly: Managing Bloating in Endometriosis

Article written by Nyaka MwanzaUncomfortable, painful, embarrassing. These are words...
Ajax loader trans
Article written by Marie FreebergMedically reviewed by Georgine Lamvu, M.D., MPHHaving...

Endometriosis and Telehealth: During COVID and Beyond

Article written by Marie FreebergMedically reviewed by Georgine Lamvu, M.D., MPHHaving...
Ajax loader trans
Article written by Alyssa S.Some women with endometriosis have noticed their heartbeat races when...

POTS and Endometriosis: Is There a Connection?

Article written by Alyssa S.Some women with endometriosis have noticed their heartbeat races when...
MyEndometriosisTeam My endometriosis Team

Two Ways to Get Started with MyEndometriosisTeam

Become a Member

Connect with others who are living with endometriosis. Get members only access to emotional support, advice, treatment insights, and more.

sign up

Become a Subscriber

Get the latest articles about endometriosis sent to your inbox.

Not now, thanks

Privacy policy
MyEndometriosisTeam My endometriosis Team

Thank you for signing up.

close