Gastroschisis affects roughly 1 in every 2,564 babies born in the United States, according to the CDC. That makes it one of the more common abdominal wall birth defects, where a baby is born with intestines (and sometimes other organs) protruding through a hole in the belly wall beside the navel. The condition has been rising globally since the 1980s, though recent data suggest U.S. rates may finally be declining.
U.S. Prevalence and Recent Trends
For decades, gastroschisis rates climbed steadily. Between 1995 and 2012, the overall prevalence across 14 U.S. states more than doubled, rising from about 3.6 per 10,000 births in the earlier years to 4.9 per 10,000 births by 2006 to 2012. That 30% jump between those two periods was seen across every maternal age group and racial or ethnic category studied.
More recently, however, the trend has reversed. CDC data show that prevalence fell from 2.43 per 10,000 births in 2016 to 1.60 per 10,000 births in 2022, a decline of about 34% in six years. A separate hospital database confirmed the same pattern, dropping from 3.32 to 2.46 per 10,000 births over a similar window. Researchers have not identified a single explanation for the reversal, but the shift is consistent across multiple national datasets.
Who Is Most at Risk
The strongest and most consistent risk factor is young maternal age. Compared with mothers aged 25 to 29, those under 20 have roughly seven times the risk of having a baby with gastroschisis. Mothers aged 20 to 24 still carry about 2.4 times the risk. This age pattern has held up across every major epidemiological study on the condition.
Beyond age, the overall profile of higher risk includes low socioeconomic status, cigarette smoking, poor nutrition, alcohol use, illicit drug use, and genitourinary infections. No single one of these factors fully explains the condition, and many cases occur without any identifiable cause. But the clustering of these lifestyle and environmental exposures in younger mothers likely contributes to why the age link is so pronounced.
Racial and Ethnic Differences
Gastroschisis rates vary across racial and ethnic groups, and those differences have been shifting. The fastest growth in cases between 1995 and 2012 occurred among Black mothers under 20, whose rates increased by 263% over that period. By comparison, rates among white mothers under 20 rose 68% during the same years.
In a nationwide analysis of gastroschisis repairs, about 44% of affected newborns were white, 23% Hispanic, and roughly 8% Black. Black newborns, however, had 56% higher odds of developing complex gastroschisis, the more severe form that involves intestinal damage, compared with white newborns. Black and Hispanic families also faced significantly higher hospital charges, a disparity that points to broader inequities in care access and outcomes rather than biology alone.
Geographic Clusters
Rates are not evenly distributed across the country. Spatial analyses have identified geographic clusters with higher than expected prevalence. In Texas, two statistically significant hotspots emerged: one in the north-central part of the state and another along the Gulf Coast near Corpus Christi, where the odds of gastroschisis were 1.2 to 1.3 times higher than expected even after adjusting for maternal age. In Massachusetts, elevated rates appeared in Cape Cod and the north-central region, though the statistical significance weakened after adjustment. The reasons for these clusters remain unclear, but researchers have looked at environmental exposures and agricultural chemical use as possible contributors.
How It Is Detected Before Birth
Gastroschisis is typically found during a routine prenatal ultrasound. When performed between 16 and 22 weeks of pregnancy, ultrasound detects about 60% of abdominal wall defects. The overall diagnostic accuracy, including correctly identifying the type of defect and any associated abnormalities, is around 72%. In about 15% of cases caught before 22 weeks, gastroschisis is initially confused with a related but different condition called omphalocele, which involves a membrane-covered protrusion at the umbilical cord. Later ultrasounds and follow-up imaging generally clarify the diagnosis.
Prenatal detection matters because it allows the birth to be planned at a hospital with a surgical team and neonatal intensive care unit ready. Babies with gastroschisis need surgery shortly after delivery to return the exposed organs to the abdomen and close the opening.
Survival and Recovery
The prognosis for gastroschisis has improved dramatically. Before the 1960s, the condition was almost always fatal. Mortality dropped below 20% by 1983, below 10% by 1993, and today overall survival exceeds 95%. That progress reflects advances in surgical techniques, neonatal intensive care, and nutritional support for newborns whose intestines need time to start functioning.
Recovery is not quick, though. The average hospital stay for a baby with gastroschisis is about 50 days, most of it spent in the NICU. During that time, the infant typically receives nutrition intravenously while the bowel recovers enough to tolerate feeding. For roughly 83% of cases classified as “simple” gastroschisis, meaning no intestinal damage, the path is relatively straightforward.
The remaining 17% are considered complex, involving complications like intestinal atresia (a blockage), necrosis (tissue death), or perforation. Mortality in this group is 7.6 times higher than in simple cases. The most serious complication is short bowel syndrome, where so much intestine is damaged that the baby cannot absorb enough nutrition. This specific complication carries a mortality rate as high as 37.5%, driven by liver failure, infection, or multi-organ failure. Even among complex cases, though, the majority survive with appropriate surgical and critical care management.