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.

Stillbirth

Stillbirth refers to the death of a fetus at or after the 20th week of pregnancy.

Research has found risk factors, such as the age of a pregnant woman, and causes, such as genetic problems, for some stillbirths. However, in many cases, the cause remains unknown even after an autopsy and other follow-up tests. Some stillbirths may be preventable, but most are not.

NICHD supports and conducts research on many aspects of stillbirth, including mechanisms, causes, risk factors, possible prevention and intervention approaches, and how often it happens.