NIH Websites Are Changing

Get the Latest Updates and FAQs on the transition

Per Executive Order 14434 , federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

Endometriosis

Endometriosis is a disease in which tissue similar to the lining of the uterus grows in other places in the body. It is one of the most common gynecological diseases, and its primary symptoms include pain and infertility.

NICHD conducts and supports research to improve understanding of the mechanisms, diagnosis, and treatments of endometriosis.