Bladder exstrophy develops during early pregnancy when the lower abdominal wall and bladder do not close properly while a baby is forming in the womb. This rare congenital condition occurs during the early stages of fetal development when the urinary system, pelvic bones, and surrounding tissues are developing.
Although doctors understand how the condition forms anatomically, the exact cause of bladder exstrophy is not fully known. Researchers believe the condition likely results from a combination of developmental factors that occur early in pregnancy.
Bladder exstrophy may be detected before birth during routine prenatal imaging or identified immediately after delivery through a physical examination.
In many cases, doctors first suspect the condition during a mid-pregnancy ultrasound, when the bladder cannot be seen filling normally within the abdomen. However, not every case is diagnosed prenatally. Some babies are diagnosed at birth when the exposed bladder is visible on the lower abdomen.
Whether diagnosed before or after birth, early identification allows families to meet with specialists and begin planning treatment.
Bladder exstrophy can sometimes be diagnosed during pregnancy using prenatal imaging. Obstetricians and maternal-fetal medicine specialists monitor fetal development during routine ultrasounds and may identify signs that suggest the condition.
Prenatal ultrasound is the most common method used to detect bladder exstrophy before birth. During the scan, doctors may notice several findings that suggest the condition, including:
These findings may prompt further evaluation and referral to specialists who are familiar with congenital urologic conditions.
In some cases, doctors may recommend fetal magnetic resonance imaging (MRI) to gather additional information about the baby’s anatomy. Fetal MRI can provide more detailed images that help confirm the diagnosis and evaluate surrounding structures.
This imaging helps doctors better understand the extent of the condition and prepare for care immediately after birth.
Not all cases of bladder exstrophy are diagnosed before birth. In some pregnancies, the signs may be subtle or develop later in fetal development. As a result, the condition may only become clear once the baby is born.
When bladder exstrophy is diagnosed at birth, doctors can still begin specialized care right away.
If bladder exstrophy is diagnosed during pregnancy, families often work closely with their healthcare providers to prepare for the baby’s delivery and medical care.
Doctors may recommend delivering at a hospital that has experience treating complex congenital conditions or access to a pediatric urology team. This allows specialists to evaluate the baby soon after birth and begin planning treatment.
Preparing for delivery after a prenatal diagnosis may involve:
Although receiving a prenatal diagnosis can feel overwhelming, many families find that early planning provides reassurance and helps them feel more prepared for the next steps.
When bladder exstrophy is not diagnosed before birth, it is typically identified immediately after delivery through a physical examination.
Doctors and nurses examining the newborn may notice that the bladder is located outside the abdomen. This visible sign usually allows healthcare providers to diagnose the condition right away.
The medical team will carefully evaluate the baby’s anatomy and begin coordinating care with specialists experienced in bladder exstrophy treatment.
The most recognizable sign of bladder exstrophy is the bladder exposed on the lower abdomen. The bladder surface may appear reddish and moist, and urine may flow continuously from the area.
Other differences may include separation of the pelvic bones and variations in genital anatomy. These features help doctors confirm the diagnosis and guide treatment planning.
After the initial diagnosis, doctors may perform additional evaluations to better understand the baby’s anatomy and plan treatment.
Imaging tests can provide detailed information about the urinary system and surrounding structures. These tests may include:
These studies help ensure that the medical team fully understands the child’s anatomy before surgery.
A pediatric urologist a specialist in urinary system conditions in children plays a central role in evaluating and treating bladder exstrophy.
The pediatric urology team reviews imaging results, examines the child’s anatomy, and discusses possible treatment options with the family. This evaluation helps guide the timing and approach for surgical repair.
Families are often referred to specialized centers experienced in bladder exstrophy care, where multidisciplinary teams work together to support the child’s health.
Receiving a diagnosis of bladder exstrophy can be overwhelming for families, especially when it occurs unexpectedly. Medical teams work closely with parents to explain the condition, discuss treatment options, and provide guidance during the early stages of care.
After diagnosis, families may meet with specialists such as pediatric urologists, surgeons, and nurses who are experienced in treating bladder exstrophy. These professionals help create a treatment plan that focuses on bladder reconstruction, protecting kidney function, and supporting long-term health.
Families may also be connected with support organizations and other parents who have experience navigating the condition. These connections can provide valuable reassurance and practical guidance during the early stages of care.
To learn more about surgical approaches and medical care, visit our Bladder Exstrophy Treatment guide.