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What is Stillbirth?

What is Stillbirth?
What is Stillbirth?

Download the Stillbirth Fact Sheet here:

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The loss of a baby due to stillbirth remains a sad reality for many families and takes a serious toll on families’ health and well-being. Learn more about stillbirth below.


A stillbirth is the death or loss of a baby before or during delivery. Both miscarriage and stillbirth describe pregnancy loss, but they differ according to when the loss occurs. In the United States, a miscarriage is usually defined as loss of a baby before the 20th week of pregnancy, and a stillbirth is loss of a baby at or after 20 weeks of pregnancy. Stillbirth is further classified as either early, late, or term.

  • An early stillbirth is a fetal death occurring between 20 and 27 completed weeks of pregnancy.

  • A late stillbirth occurs between 28 and 36 completed pregnancy weeks.

  • A term stillbirth occurs between 37 or more completed pregnancy weeks.


How Many Babies Are Stillborn? Stillbirth affects about 1 in 175 births, and each year about 21,000 babies are stillborn in the United States.1 That is about the same as the number of babies that die during the first year of life. Because of advances in medical technology over the last 30 years, prenatal care (medical care during pregnancy) has improved, which has dramatically reduced the number of late and term stillbirths. However, the rate of early stillbirth has remained about the same over time.

What Increases the Risk of Stillbirth? Stillbirth with an unknown cause is called “unexplained stillbirth.” The further along a woman is in her pregnancy the more likely it is that the stillbirth will be unexplained. Having an autopsy on the baby and other laboratory tests is important in trying to understand why the baby died before birth. Your health care provider can share more information about this.

Stillbirth occurs in families of all races, ethnicities, and income levels, and to women of all ages. However, stillbirth occurs more commonly among certain groups of people including women who:

  • are of black race

  • are 35 years of age or older

  • are of low socioeconomic status

  • smoke cigarettes during pregnancy

  • have certain medical conditions, such as high blood pressure, diabetes and obesity

  • have multiple pregnancies such as triplets or quadruplets

  • have had a previous pregnancy loss

This does not mean that every individual of black race or older age is at higher risk for having a stillbirth. It simply means that overall as a group, more stillbirths occur among all mothers of black race or older age when compared to white mothers and mothers under 35 years of age. Some factors that might contribute to these stillbirth disparities include differences in maternal preconception health, socioeconomic status, access to quality health care, and stress.2 More research is needed to determine what is underlying reason why some of these factors are associated with stillbirths.

Many of these factors are also associated with other poor pregnancy outcomes, such as preterm birth.

What Can Be Done? CDC works to learn more about who might have a stillbirth and why. CDC does this by tracking how often stillbirth occurs and researching what causes stillbirth and how to prevent it. Knowledge about the potential causes of stillbirth can be used to develop recommendations, policies, and services to help prevent stillbirth. While we continue to learn more about stillbirth, much work remains. To learn more about CDC’s activities, visit the Stillbirth CDC Activities page. References:

  1. Gregory ECW, Valenzuela CP, Hoyert DL. Fetal mortality: United States, 2020. National Vital Statistics Reports; vol 71 no 4. Hyattsville, MD: National Center for Health Statistics. 2022. [Read report]

  2. Pruitt SM, Hoyert DL, Anderson KN, et al. Racial and Ethnic Disparities in Fetal Deaths — United States, 2015–2017. MMWR Morb Mortal Wkly Rep 2020;69:1277–1282.

  3. MacDorman MF, Kirmeyer SE, Wilson EC. Fetal and perinatal mortality, United States, 2006. National vital statistics reports; vol 60 no 8. Hyattsville, MD: National Center for Health Statistics. 2012. [Read data brief pdf icon[432 KB / 23 pages]



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Does your hospital have a cooling cradle?

Donating a Cenotaph Cradle to your local hospital can memorialize a baby, and help families affected by infant loss in the future gain the gift of time. 

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