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Meckel’s Diverticulum

Learn about symptoms, causes, management of paediatric Meckel’s diverticulum, and when to contact a paediatric surgeon in Singapore.

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What Is Meckel’s Diverticulum?

Meckel's diverticulum is a small bulge that sticks out from the wall of the small intestine. It's a birth defect that forms during early pregnancy, though many people never know they have it unless it causes problems. About 2% of people are born with Meckel's diverticulum, making it the most common congenital abnormality of the gastrointestinal tract.
The diverticulum is typically located in the lower part of the small intestine. It's often about 5 centimeters, or 2 inches long, which is why there is a "rule of 2s" when it comes to Meckel’s: 2% of population, 2 feet (60 centimeters) from where the small intestine joins the large intestine, 2 inches long, and typically causes problems before age 2 (but symptoms can occur at any age).
Most people with Meckel's diverticulum never have symptoms. However, in some children, complications develop that require treatment, including possible Meckel's diverticulum surgery. The main complications are gastrointestinal bleeding, intestinal obstruction, and inflammation.

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Common Symptoms of Meckel's Diverticulum

Gastrointestinal Bleeding

The diverticulum can cause bowel obstruction in several ways:

  • Severe abdominal pain that comes in waves (cramping)

  • Vomiting, including vomit that looks green or yellow

  • Abdominal swelling and distension

  • Inability to pass stool or gas

  • Loud bowel sounds initially, then silence as obstruction worsens

Obstruction happens when the Mackel’s diverticulum twists, when a band of tissue from the diverticulum traps intestine, or when the diverticulum becomes the lead point for intussusception (telescoping of the bowel).

Inflammation (Diverticulitis)

Less commonly, the Meckel's diverticulum can become inflamed, mimicking appendicitis:

  • Abdominal pain in the lower or middle abdomen (unlike appendicitis, which is typically right lower)

  • Fever

  • Nausea and vomiting

  • Tenderness when the abdomen is touched

  • Loss of appetite

Perforation

Rarely, severe inflammation can cause the diverticulum to rupture:

  • Sudden, severe abdominal pain

  • Rigid, board-like abdomen

  • High fever

  • Rapid heart rate

  • Severe illness appearance

This is a surgical emergency.

Anemia

Chronic and slow bleeding from Meckel's diverticulum can cause fatigue and weakness, pale skin, shortness of breath with activity, and poor growth if bleeding has been ongoing.

When to Seek Care

Contact us immediately if your child has blood in the stool, severe abdominal pain, persistent vomiting, inability to pass stool or gas, and signs of dehydration or blood loss (pale, weak, dizzy). 
These symptoms may require urgent paediatric diagnosis and possible Meckel's diverticulum surgery.

What Causes Meckel's Diverticulum in Children?

Meckel's diverticulum forms during early fetal development and represents a structure that should have disappeared before birth.
During weeks 5-7 of pregnancy, the embryo is connected to the yolk sac by a duct that provides nutrition to the developing baby. Normally, by week 7-8, this duct completely closes and disappears. The only remnant that should remain is the belly button where the umbilical cord was attached.
In about 2% of babies, this duct doesn't close completely. The part closest to the intestine remains, forming a pouch that sticks out from the small intestine wall; this is Meckel's diverticulum.
What makes Meckel's diverticulum problematic is that it often contains tissue that doesn't belong in the intestine. This is what causes most complications requiring Meckel's diverticulum treatment.

Important Points for Parents

Parents should understand:

  • You didn't cause this condition; it is simply a variation in development

  • There is no known genetic link or preventable causes

  • Most people with Meckel's diverticulum never have problems

  • If complications occur, they are treatable with Meckel's diverticulum surgery

Consequences of Untreated Meckel's Diverticulum

While most people with Meckel's diverticulum never have problems, if complications develop, they can be serious and require immediate Meckel's diverticulum treatment.

Severe Gastrointestinal Bleeding

Bleeding from Meckel's diverticulum can be significant. Acute blood loss (quick loss of large amounts of blood) can lead to shock and requires emergency hospitalisation and blood transfusions.
Chronic anaemia (ongoing slow bleeding) depletes iron, causing fatigue, weakness, and poor growth, requiring iron supplementation and eventually surgical treatment. It also affects your child’s cognitive development if severe.
Bleeding may stop spontaneously, then recur. Each recurrent episode carries risks, uncertainty, and anxiety for families. Your child may need multiple hospitalisations before a diagnosis is made. Without Meckel's diverticulum surgery to remove the diverticulum, bleeding typically recurs. 

Intestinal Obstruction

Several mechanisms can cause bowel obstruction:

  • Volvulus: The diverticulum can twist on itself or cause the intestine to twist, cutting off the blood supply. This causes severe pain, risk of intestinal death, and the need for emergency surgery.

  • Intussusception: The diverticulum can act as a lead point for intussusception, where a portion of the intestine folds like a telescope. This leads to severe cramping pain, vomiting, and bloody and jelly-like stools.

  • Band obstruction: Sometimes a fibrous band extends from the diverticulum to the abdominal wall. The intestine can twist around this band, causing complete bowel obstruction.

All forms of obstruction are surgical emergencies requiring immediate treatment.

Perforation and Peritonitis

Severe inflammation or pressure can cause the diverticulum to rupture. Intestinal contents may spill into the abdomen, leading to peritonitis (abdominal infection) and/or sepsis (bloodstream infection). Your child will need emergency surgery and antibiotics, along with long hospital stays and recovery.

How to Treat Meckel's Diverticulum in Children

Treatment depends on whether the Meckel's diverticulum is causing symptoms. At The Little Surgery, we provide comprehensive care, including evaluation, diagnostic testing, coordination, and expert Meckel's diverticulum surgery when needed for symptomatic cases.

Evaluation and Diagnosis

When a child has symptoms suggesting Meckel's diverticulum, Dr. Ong will review the history of bleeding, pain, or obstruction. A  physical examination is performed along with technetium scans for Meckel’s diagnosis. Other imaging tests like CT, upper GI series, capsule endoscopy, etc, may be used to show any complication.

Observation For Incidental Findings

When Meckel's diverticulum is found incidentally during surgery or imaging for other reasons, observation is appropriate if your child has never had symptoms. The lifetime risk of developing complications is low. 
If found during abdominal surgery for another reason, it's often removed since the abdomen is already open.

Management of Complications

If Meckel's diverticulum causes complications such as gastrointestinal bleeding, anaemia, intestinal obstruction, or inflammation, appropriate treatment measures are taken:

  • Hospitalisation for monitoring

  • IV fluids

  • Blood transfusions

  • Pain management

  • Medications

  • Surgical intervention as needed

Meckel's Diverticulum Surgery

Surgery is the definitive Meckel's diverticulum treatment for symptomatic cases. It is recommended for confirmed or suspected Meckel's that is causing gastrointestinal bleeding, intestinal obstruction, inflammation, and perforation.
Most Meckel's diverticulum surgeries can be done laparoscopically (minimally invasive). Open surgery may be necessary in emergencies with obstruction or perforation. In the operation, an incision is made in the lower abdomen, the diverticulum is located and removed, the intestine is repaired, and the abdomen is closed in layers.

Recovery After Meckel's Diverticulum Surgery

Children typically stay in the hospital for 2-4 days in uncomplicated cases, and up to weeks in emergency cases or complications. They have a gradual return of bowel function (usually 1-2 days), and receive pain management and early walking support.
At home, your child should avoid strenuous activity and contact sports for 2-3 weeks; they can return to school in 5-7 days. Pain is usually mild and can be controlled with oral medication. Follow-ups are scheduled 1-2 weeks after surgery to ensure healing and address any concerns.

Why Choose The Little Surgery for Meckel's Diverticulum Treatment

We provide comprehensive care for Meckel's diverticulum, including diagnostic evaluation, coordination with paediatric specialists, and expert Meckel's diverticulum surgery for symptomatic cases.

Experienced Paediatric Surgeon

Dr. Ong Lin Yin has over 20 years of experience in paediatric surgery, including the treatment of Meckel's diverticulum with complications. As the former Head of Paediatric Surgery at KK Women's and Children's Hospital, she has performed numerous Meckel's diverticulum surgery procedures with excellent outcomes.

Comprehensive Care

We provide thorough evaluation, including detailed history and examination, appropriate imaging, and consultation with gastroenterologists and radiologists when needed. For cases needing Meckel's diverticulum surgery, a minimally invasive approach is prioritised when possible. For children with acute complications, we provide urgent stabilisation and emergency surgery.

Family Support

We understand that emergency surgery is frightening for children and parents. We provide clear explanations of your child’s condition, detailed discussions on surgery, compassionate support throughout treatment, and long-term partnership in your child's care.
As a mother herself, Dr. Ong understands family concerns and ensures you feel informed and comfortable.

Contact The Little Surgery Today

If your child has gastrointestinal bleeding, recurrent abdominal pain, or other symptoms suggesting Meckel's diverticulum, we can help.
Contact The Little Surgery today and take the first step toward ensuring your child's health and happiness.

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