Your child has a stomach ache, doesn't want to eat, and seems worse than with a typical tummy bug. Could it be appendicitis?
Appendicitis is the most common cause of emergency abdominal surgery in children. The condition requires prompt diagnosis and treatment. As a parent, it's valuable to know the symptoms so you can seek help in time.
What Is Appendicitis?
The appendix is a small, finger-shaped pouch attached to the large intestine, located in the lower right part of the abdomen. In appendicitis, this pouch becomes inflamed — usually because it is blocked by stool, swelling, or in rare cases a foreign object.
When the appendix is blocked, pressure inside increases, blood flow decreases, and bacteria begin to multiply. Without treatment, the appendix can rupture (perforate), which can lead to serious infection in the abdominal cavity.
Appendicitis by the numbers:
- Most common in children aged 5 to 15
- Rare in children under 2, but it can occur
- Affects approximately 1 in 1,000 children per year
- Surgery is necessary in most cases
Symptoms of Appendicitis in Children
Symptoms typically develop over 12–24 hours but can vary from child to child. The classic progression is:
1. Pain Starting Around the Navel
The most common first symptom is vague, diffuse abdominal pain around the navel or in the middle of the abdomen. The pain may come and go initially.
2. Pain Moves to the Right Side
After 6–12 hours, the pain typically migrates to the lower right part of the abdomen (McBurney's point). The pain becomes stronger, more constant, and worse with movement.
3. Other Symptoms
- Loss of appetite — the child doesn't want to eat; this is an important sign
- Nausea and vomiting — usually comes after the pain has started
- Low-grade fever — typically 99–101°F (37.5–38.5°C) early on
- Changed bowel pattern — constipation or in some cases diarrhea
- The child won't jump or run — movement worsens the pain
- The child lies still — often curled up on the right side
The classic sign: A child who is normally active but suddenly prefers to lie still and won't move should be evaluated for appendicitis. Abdominal pain that worsens with jumping is a typical sign.
Symptoms in Babies and Toddlers
Appendicitis in children under 5 is harder to detect because they cannot describe pain precisely. Look for:
- Bloated, tense belly — the abdomen may be hard and tender
- Irritability and crying — the child is uncomfortable and hard to console
- Curled-up position — the child pulls legs toward the abdomen
- Vomiting — often early in the course of illness
- Refuses to eat
- Fever
- Lethargy and fatigue
In young children, appendicitis can progress more rapidly, and the risk of the appendix rupturing is higher. This is because symptoms are harder to interpret and diagnosis is often delayed. Seek medical attention quickly if appendicitis is suspected in a child under 5.
How to Recognize Appendicitis
The Jump Test
Ask the child to jump up and down. If this triggers sharp pain in the lower right part of the abdomen, it is an important sign. Children with appendicitis will typically refuse to jump.
Press and Release
Gently place your hand on the lower right part of the child's abdomen. Press slowly inward and release quickly. If the worst pain comes when you let go (rebound tenderness), this suggests irritation of the peritoneum, which is common in appendicitis.
The Car Ride Test
Many parents report that the child complains more during car rides, especially over speed bumps. The vibrations intensify the pain.
These home tests are only indicative. They do not replace medical examination. If you suspect appendicitis, always seek medical attention.
When Should You Seek Medical Care?
Go to the doctor or emergency room promptly if the child:
- Has stomach pain lasting more than 4–6 hours that doesn't go away
- Has pain that started around the navel and moved to the right side
- Refuses to eat and has nausea or vomiting
- Has fever combined with stomach pain
- Prefers to lie still and won't move
- Has a hard, tense belly that is tender to the touch
Call 911 or go directly to the emergency room if the child:
- Has sudden, very severe stomach pain
- Has a high fever (above 102°F / 39°C) with severe stomach pain
- Appears acutely ill (pale, limp, confused)
- Has had stomach pain for more than 24 hours that keeps getting worse
Diagnosis
The diagnosis is established through a combination of physical examination, blood tests, and imaging.
Physical Examination
The doctor will:
- Feel the abdomen to find the most tender point
- Test for rebound tenderness
- Check fever and pulse
- Assess the child's general condition
Blood Tests
- CRP (inflammatory marker) — often elevated
- White blood cells (leukocytes) — usually elevated
- Urinalysis — to rule out urinary tract infection
Imaging
- Ultrasound — first-choice investigation in children; no radiation
- CT scan — used if ultrasound is inconclusive; more detailed imaging
- MRI — can be used in children to avoid radiation from CT
Ultrasound is the preferred investigation in children because it involves no radiation. In many cases, ultrasound is sufficient to make the diagnosis.
Treatment — Surgery
Appendectomy (Removal of the Appendix)
Surgery is the standard treatment for appendicitis. Most operations are performed using keyhole surgery (laparoscopy):
- Three small incisions in the abdomen (5–10 mm)
- Camera and instruments inserted through the incisions
- The appendix is removed and the incisions are closed
- The operation takes about 30–60 minutes
- General anesthesia — the child sleeps through the entire procedure
In some cases, especially if the appendix has ruptured, open surgery with a larger incision may be necessary.
Can Appendicitis Be Treated Without Surgery?
Research is ongoing into whether uncomplicated appendicitis can be treated with antibiotics alone. Some studies show promising results, but surgery remains the standard treatment for children. Discuss with the surgeon if you have questions about this.
After Surgery
The First Few Days
- The child wakes from anesthesia and may be a bit disoriented and nauseated
- Pain relief is given with acetaminophen and possibly ibuprofen
- Fluids can usually be offered after a few hours
- Food is introduced gradually when the child is ready
- Going home — with uncomplicated surgery, the child can often go home the same day or the day after
Recovery at Home
- Pain — some pain around the surgical incisions is normal for 3–7 days
- Pain relief — give acetaminophen and/or ibuprofen as needed for the first few days
- Activity — let the child set the pace; allow them to do what they feel up to
- School/daycare — most children are back after 1–2 weeks
- Sports and gym — avoid strenuous physical activity for 2–4 weeks after keyhole surgery
- Swimming/baths — wait until the wounds are healed, usually 1–2 weeks
- Follow-up — most children have a check-up 2–4 weeks after surgery
Let the child set the pace. Some children bounce back within days, while others need a little more time. Both are completely normal.
Signs of Complications After Surgery
Contact the hospital if, after surgery, the child:
- Develops a fever above 101.5°F (38.5°C)
- Has increasing (not decreasing) pain
- Has redness, swelling, or discharge from the surgical wounds
- Vomits repeatedly
- Cannot eat or drink after 24 hours
Ruptured Appendix
If the appendix ruptures, intestinal contents leak into the abdominal cavity. This can cause peritonitis (infection of the abdominal lining), which is a serious condition.
Signs of a ruptured appendix:
- Pain may temporarily ease when the appendix ruptures (pressure relief)
- Then the pain rapidly worsens and spreads across the whole abdomen
- High fever (above 102°F / 39°C)
- The child appears obviously sicker
- Bloated, rigid abdomen
Treatment for a ruptured appendix:
- Emergency surgery
- Intravenous antibiotics
- Longer hospital stay (often 3–7 days)
- A drain may be placed to remove infected fluid
The risk of a ruptured appendix is higher in young children (under 5) because diagnosis is often delayed.
Appendicitis vs. Other Stomach Pain
Many children have stomach pain without it being appendicitis. Common other causes:
- Constipation — one of the most common causes of stomach pain in children
- Stomach bug (gastroenteritis) — causes vomiting, diarrhea, and stomach pain
- Urinary tract infection — can cause pain in the lower abdomen
- Menstrual pain — in older girls
- Mesenteric lymphadenitis — enlarged lymph nodes in the abdomen that mimic appendicitis; resolves on its own
- Functional abdominal pain — recurring pain with no identifiable cause
Functional abdominal pain (pain without an organic cause) is common in school-age children. It can come and go over weeks and months. If the pain is not acute, there is plenty of time to schedule an appointment with your family doctor.
Frequently Asked Questions
Can appendicitis be prevented?
No, there is no known way to prevent appendicitis. A diet high in fiber may possibly reduce the risk somewhat, but this has not been proven.
Can children under 2 get appendicitis?
Yes, but it is very rare. Appendicitis in the very young is harder to diagnose and often has a more serious course, with a higher risk of perforation. Seek medical attention immediately for persistent, unexplained stomach pain in toddlers.
Is it dangerous to remove the appendix?
No. The appendix has no known important function, and life is perfectly normal without it. The surgery itself is considered safe with a low risk of complications.
How long does recovery take?
Most children are back at school or daycare after 1–2 weeks. Full activity (sports, gym) can usually be resumed after 2–4 weeks with keyhole surgery. With open surgery or a ruptured appendix, it may take 4–6 weeks.
Can stomach pain come back after appendix surgery?
Some children may experience mild stomach pain in the first few weeks after surgery, which is normal. If severe or persistent pain occurs, see a doctor to rule out complications.
Sources
- American Academy of Pediatrics — Appendicitis in Children
- UpToDate — Appendicitis in children: Clinical manifestations and diagnosis
- AAP — Surgical management of appendicitis in children