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Health Information Center

Risk Factors for Endometriosis

  • Cynthia M. Johnson, MA
Publication Type:

Condition InDepth

Risk Factors for Endometriosis

A risk factor is something that raises the chances of getting a health problem. A person can get endometriosis with or without the ones listed below. The chances of getting it are greater in people who have many.

This problem is more common in people who are White. Other things that can raise the risk are:

Menstrual Risks

The risk may be higher in people who:

  • Had their period before age 10
  • Have a cycle that is less than 28 days
  • Have a period that lasts 5 to 6 days

No Pregnancy

Waiting to have children may raise the risk. Pregnancy hormones can slow or stop endometriosis.

Defects of the Uterus

Problems in the way the uterus was formed may cause blood flow issues. This can lead to endometriosis.


  • Endometriosis. ACOG website. Available at: https://www.acog.org/Patients/FAQs/Endometriosis.
  • Endometriosis. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/endometriosis.
  • Endometriosis. Office on Women's Health—US Health and Human Services website. Available at: https://www.womenshealth.gov/a-z-topics/endometriosis.
  • Levine EM, et al: Deep Infiltrating Endometriosis: Making the Diagnosis. J Diagn Med Sonogr 2019;35(4):1-3.


  • Elizabeth Margaret Prusak, MD
Last Updated:

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.