Duodenal Atresia: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Duodenal Atresia?
A pediatric surgeon, a surgeon who operates on babies and children, repairs duodenal atresia. A neonatologist, a doctor who cares for newborns, usually looks after the baby before and after surgery. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is duodenal atresia?
Duodenal atresia is a condition in which the first part of the small bowel, called the duodenum, has not developed properly. It is not open and does not allow the passage of stomach contents. Signs and symptoms appear shortly after birth. It occurs in 1 in 5,000 to 10,000 live births. Boys and girls are affected equally.
Symptoms
Symptoms of duodenal atresia include:
- Early vomiting of large amounts, which may be greenish because it contains bile.
- Vomiting that continues even when the baby has not been fed for several hours.
- Swelling of the upper belly, sometimes.
- No bowel movements after the first few meconium stools, the first dark stools of a newborn.
- Yellowing of the skin, called jaundice.
A partly blocked duodenum is called duodenal stenosis. Its symptoms can include vomiting, dehydration, and trouble gaining weight. They may come and go, and may not appear for weeks, months, or years.
Causes and who gets it
The cause of duodenal atresia is not known. It is thought to result from problems during an embryo's development. The duodenum does not change from a solid to a tube-like structure, as it normally would. Many infants with duodenal atresia also have Down syndrome. It is often linked to other birth defects. Around 20% to 25% of infants also have heart defects at birth. No specific genetic cause has been found for babies who have only this problem.
How doctors diagnose it
A fetal ultrasound may show a large amount of fluid around the baby in the womb. It may also show a swollen stomach and part of the duodenum. After birth, an abdominal X-ray may show air in the stomach and first part of the duodenum, with no air beyond that. This is known as the double-bubble sign. If the diagnosis is unclear, doctors may do more tests, such as an upper gastrointestinal series. Doctors also check for other birth defects.
Treatment
A tube is placed to decompress the stomach. Fluids given through a vein correct dehydration and electrolyte imbalances. Surgery to correct the duodenal blockage is necessary. The surgery makes a connection that bypasses the blockage. The earlier it is found and treated, the better the outcome. Some babies need feeding through a vein until they can eat normally. Some surgeons use small cuts and a camera. This is reliable only when the surgeon has a lot of experience.
Recovery is expected after treatment. Without treatment, the condition is deadly. After surgery, problems can include swelling of the first part of the small bowel, trouble moving food through the gut, and reflux. Related problems, such as those linked to Down syndrome, are treated too.
When to see a doctor
Call 911 or go to the emergency room right away if your newborn vomits green or yellow-green fluid. This can mean a blocked or twisted gut. Go right away too if your baby keeps vomiting (more than spitting up), has a swollen belly, or will not feed. Go right away if there are no wet diapers or stools, trouble breathing, or bluish or grey skin.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. A baby with duodenal atresia needs surgery to correct the blockage. Later on, such a doctor can follow your child's general health and help coordinate care with specialists.
Common questions
Does duodenal atresia need surgery?
Yes, surgery to correct the blockage is necessary. The baby is first given fluids to correct dehydration. The standard surgery is usually done shortly after birth.
Can duodenal atresia be prevented?
No, there is no known prevention.
Is duodenal atresia linked to Down syndrome?
Yes, many infants with duodenal atresia also have Down syndrome. It is also often linked to other birth defects.
Can duodenal atresia be found before birth?
Yes, it is often found during pregnancy on an ultrasound. A characteristic finding is the double-bubble sign. It shows two fluid-filled areas, the stomach and the blocked upper duodenum.
Sources
- MedlinePlus - Duodenal atresia
- NORD (National Organization for Rare Disorders) - Duodenal Atresia or Stenosis
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
