A child clutching their stomach and saying “it hurts,” especially when they’re too young to describe how it hurts, is one of the most common reasons parents call their pediatrician. The good news is that most stomach pain in kids is short-lived and easy to manage at home. The key is knowing which symptoms are ordinary and which ones mean it’s time to call the doctor. In this comprehensive guide, we’ll explain the most common causes of stomach pain in children, related symptoms, risk factors, and when it is important to seek pediatric care.

Quick Answer: What Causes Stomach Pain in Children?

Most stomach pain in children is caused by constipation, a stomach virus, gas, or stress, and it typically resolves within 24 to 72 hours with rest, fluids, and simple diet changes. However, if pain is severe, localized to one spot (especially the lower right abdomen), lasts more than a few days, or comes with fever, repeated vomiting, or blood in the stool or vomit, it should always be evaluated by a pediatrician.

A child’s digestive system is still maturing, so it reacts more strongly than an adult’s to changes in diet, routine, sleep, or stress. Most pediatric abdominal pain is functional, meaning the gut is working harder or differently, not that something is structurally wrong.

The Most Common Causes, and What Sets Each One Apart

• Constipation: The single most common cause of recurring stomach pain. Watch for fewer than three bowel movements a week, hard or pellet-like stool, or pain when passing stool. This pain often sits low in the belly and eases after a bowel movement.
• Viral gastroenteritis (“stomach bug”): Usually comes with nausea, vomiting, diarrhea, and sometimes a low-grade fever. It’s contagious and typically resolves in 1 to 3 days. The biggest risk isn’t the virus itself, it’s dehydration.
• Gas and indigestion: Often triggered by eating too fast, carbonated drinks, beans, dairy, or sugar-free gum (sorbitol is a common culprit). Pain is crampy, comes in waves, and improves after passing gas or burping.
• Food sensitivities: Lactose intolerance and gluten sensitivity are the two most common triggers. This differs from a true food allergy, which can cause hives, swelling, or breathing trouble and needs urgent care. A pediatrician can help guide a short elimination trial rather than cutting out food groups on your own.

Symptoms That Often Travel With Stomach Pain

Red Flags: When Stomach Pain Needs Same-Day or Emergency Care

Call your pediatrician the same day for:

• Constant pain fixed in one spot, especially the lower right abdomen, which can signal appendicitis (classic appendicitis pain starts near the belly button and migrates to the lower right over 12 to 24 hours, often with loss of appetite and mild fever)
• Pain that worsens with movement, coughing, or jumping
• Fever alongside abdominal pain, or pain that wakes a child from sleep
• Loss of appetite lasting more than a day combined with belly pain

Go to the ER or call 911 for:

• Blood in vomit or stool, or vomit that looks like coffee grounds
• Inability to keep fluids down for several hours
• A rigid, board-like belly, or the child won’t let you touch it
• In toddlers: sudden severe pain with drawing the knees to the chest and red, jelly-like stool (a possible sign of intussusception, a bowel blockage needing urgent treatment)
• Severe pain after a recent fall or injury to the abdomen

What Raises a Child’s Risk of Recurring Stomach Pain

• Low fiber intake
• Poor hydration
• Skipping meals or eating irregularly
• High stress or anxiety
• Underlying conditions such as milk allergy, celiac disease, or an anxiety disorder

What Actually Helps at Home

• Hydrate first: For a stomach bug, offer an oral rehydration solution (like Pedialyte) in small, frequent sips rather than large amounts of juice or soda, which can worsen diarrhea.
• Go bland, not empty: Toast, rice, bananas, and applesauce are gentle on an upset stomach once vomiting has stopped.
• Add fiber gradually for constipation: Prunes, pears, whole grains, and extra water work well, but introduce them slowly to avoid extra gas.
• Try gentle heat: A warm (not hot) heating pad or warm bath can ease crampy pain from gas or constipation.
• Gentle belly massage: Light, clockwise circular rubbing around the navel can help move gas and stool along.
• Avoid dairy and carbonated drinks temporarily if you suspect gas or a sensitivity is the trigger.
• Be careful with medication: Simethicone (like Mylicon) is generally fine for gas. Avoid ibuprofen if appendicitis is a possibility, since it can mask fever. Check dosing with your pediatrician or pharmacist based on weight.
• Keep a simple symptom log: Note timing, food, and stool patterns. It often helps a pediatrician diagnose faster than a description of the pain alone.

When to Actually Book the Appointment

Don’t wait it out if pain lasts more than 3 to 5 days, interferes with sleep or normal activity, vomiting keeps returning after 24 hours, or you notice weight loss or a pattern tied to certain foods. Bring your symptom log to the visit for a faster, more accurate answer.

How Florida Medical Clinic Orlando Health Supports Pediatric Care

At Florida Medical Clinic Orlando Health, we understand how worrying stomach pain can be for both children and parents. Our pediatric providers take a compassionate, family-centered approach that looks at the full picture, including symptoms, diet, medical history, and emotional well-being. As the only pediatrician serving our West region, Dr. Tali Wojnowich cares for families at our St. Petersburg location, providing convenient access to timely evaluation and personalized care plans designed to support both immediate symptom relief and long-term digestive health. Our goal is to help children feel better while giving parents clear answers and peace of mind.

Meet Dr. Tali Wojnowich

Dr. Tali Wojnowich is a Board Certified pediatrician providing compassionate care for children from infancy through adolescence. She earned her medical degree from Mercer University School of Medicine and completed her pediatric residency through the University of South Florida, with training at Johns Hopkins All Children’s Hospital and Tampa General Hospital. She provides comprehensive pediatric care including preventive visits, sick visits, developmental screenings, ADHD evaluation and treatment, and chronic condition management. Her clinical focus includes pediatric mental health, asthma, obesity, and preventive care. Dr. Wojnowich is committed to building strong relationships with families and supporting the physical, emotional, and developmental health of every child. She is fluent in English and conversational Spanish.

Call (727) 893-6785 to schedule an appointment with Dr. Tali Wojnowich and receive expert pediatric guidance for your child’s stomach pain and overall well-being.