Surging Syphilis Rates in Pregnant Women Raise Public Health Concerns

Maternal syphilis rates in the United States are at their highest levels in decades, posing a serious threat to both mothers and newborns. A recent analysis from the National Center for Health Statistics (NCHS) reveals a concerning trend: a 28% increase in the maternal syphilis rate between 2022 and 2024. This follows a previous surge of 222% between 2016 and 2022, underscoring a worsening public health crisis.

The Scope of the Problem

The overall rate of syphilis in mothers giving birth in the U.S. More than tripled from 2016 to 2022, rising from 87.2 to 280.4 cases per 100,000 births . This trend continued, with rates climbing to 357.9 cases per 100,000 births from 2022 to 2024 . The infection, caused by the bacterium Treponema pallidum, is transmitted through sexual contact and can be passed from a mother to her infant during pregnancy or childbirth, resulting in congenital syphilis.

The Dangers of Congenital Syphilis

Congenital syphilis can have devastating consequences for newborns, including miscarriage, stillbirth, and infant death. Babies born with the infection can experience lifelong medical issues, such as brain and nerve disorders, low birthweight, and preterm birth . It is estimated that congenital syphilis causes as many as 350,000 adverse birth outcomes globally each year . Research also indicates that children under five exposed to maternal syphilis in utero face a higher risk of hospitalization and longer hospital stays .

Disparities in Infection Rates

The rise in maternal syphilis rates is not uniform across all populations. Significant racial and ethnic disparities exist. From 2022 to 2024, rates increased by 52% among American Indian and Alaska Native mothers, rising from 1,410.5 to 2,145 cases per 100,000 births .

The Importance of Screening and Prenatal Care

Syphilis is treatable, even during pregnancy, with penicillin. However, the alarming increase in cases highlights the fact that too many pregnant women are not being screened. Although most states mandate syphilis screening at the first prenatal appointment, and some require additional testing during the third trimester and at delivery, access to prenatal care remains a significant barrier for many.

Factors contributing to limited access include financial constraints (lack of insurance or high deductibles), transportation difficulties, work commitments, and a shortage of maternal health providers, particularly in rural areas . Approximately 35% of women of reproductive age in the United States live in areas with limited access to maternal health services .

Looking Ahead

Addressing the surge in maternal syphilis rates requires a multi-faceted approach, including increased access to prenatal care, expanded screening programs, and targeted interventions for high-risk populations. Continued monitoring of these trends and a commitment to equitable healthcare access are crucial to protecting the health of mothers and their babies.