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Tummy Troubles: Does Your Kid Have Stomach Flu?
Watching your child go from playful and energetic to pale and curled up with a stomachache can be alarming. It’s one of those moments every parent dreads—when your little one looks up at you with teary eyes and says, “My tummy hurts.”
We know it’s tempting to, but don’t panic.
More often than not, it’s something many kids go through: a stomach flu or viral gastroenteritis. While the name sounds scary, it’s a common illness caused by a virus that affects the stomach and intestines.
At CMCFresno, we’re here to help you through these challenging moments. Our pediatric team is committed to giving you the information and care you need to make the best decisions for your child’s health.
Let’s clear up the common misconception about stomach flu. Despite the name, stomach flu isn’t the actual flu (influenza). It’s a completely different illness with its own set of symptoms. Doctors call it viral gastroenteritis, and it affects the stomach and intestines rather than the respiratory system.
What causes it?
In children, the most common stomach flu causes are viruses that affect the stomach and intestines. These include:
Norovirus – Spreads quickly and causes vomiting, diarrhea, and cramps (or abdominal pain).
Rotavirus – Often affects infants and toddlers. Vaccines help, but it can still be serious.
Adenovirus – Known for cold-like symptoms, but can also upset the stomach.
How does it spread?
Stomach flu is highly contagious. Kids often catch it by:
Eating or drinking something contaminated.
Touching infected surfaces, like toys or doorknobs.
Being around someone who is sick, especially during outbreaks in schools or group settings
These viruses can survive on surfaces for days, which is why we encourage regular hand washing and cleaning.
Common Symptoms to Watch Out For
One of the best ways to cure stomach flu is to recognize the symptoms early. Kids can’t always explain exactly how they feel. That’s why knowing what to look for can make a big difference. The earlier you spot the signs of stomach flu, the sooner you can start managing the symptoms and keep your kid comfortable.
Watch out for these common stomach flu symptoms:
Vomiting
Diarrhea
Stomach cramps
Low-grade fever
Headache or body aches
Fatigue and loss of appetite
Not every child will have all these symptoms, but even a few can make them feel awful. At CMCFresno, we’re here to help you understand what’s normal and what’s not and how to care for your child with confidence.
When to Worry: Signs It’s Time to Call the Doctor
Most cases of stomach flu get better with rest, fluids, and home care. But as a parent, it’s important to know when things go beyond what’s normal. If your child’s symptoms seem to linger or take a turn for the worse, don’t wait. Trust your instincts and reach out to your doctor.
Call your pediatrician if you notice:
Symptoms lasting more than two to three days: Vomiting or diarrhea that doesn’t improve may need medical attention.
Dehydration: Watch for dry mouth, no tears when crying, fewer wet diapers or bathroom trips, and sunken eyes.
High or ongoing fever: A fever over 102°F, especially if it lasts more than a day, should be evaluated by a physician.
Bloody stool or severe stomach pain: These could signal something more serious.
Extreme tiredness or difficulty waking: If your child is unusually sleepy or has trouble waking, call your doctor right away.
If you’re unsure whether or not your child’s symptoms are severe, talk to our pediatrician. Here at CMCFresno, we offer same-day sick visits to make sure your child gets the care they need right when they need it.
How to Care for Your Child at Home
If your child’s gastroenteritis symptoms are mild and manageable, home care is often the best first step. In fact, many cases of stomach flu treatment begin and end right at home with a few simple, supportive measures. Here’s how you can help your child feel better:
Keep Them Hydrated
Offer small sips of water, clear broth, or electrolyte drinks like Pedialyte.
Stick to Gentle Foods
Once their stomach settles, try the BRAT diet: bananas, rice, applesauce, and toast. Avoid sugary snacks or greasy foods.
Let Them Rest
Sleep helps the body fight off the virus. Keep your child cozy, comfortable, and close by.
Keep Things Clean
Wipe down surfaces, wash hands often, and avoid sharing cups or utensils. This helps stop the virus from spreading.
How to Prevent Stomach Flu in Kids
Kids will be kids—sharing toys, snacks, and, yes, germs. While you can’t always prevent every illness, teaching healthy habits is one of the best ways to stay ahead of the stomach flu. A few small changes can go a long way in keeping your little one healthy and reducing sick days at home.
Keep your child healthy with these prevention tips:
Wash hands often: Teach your child to scrub with soap and water, especially after using the bathroom and before eating.
Disinfect surfaces: Regularly clean toys, doorknobs, and anything that those little hands touch frequently.
Don’t share things during outbreaks: Avoid letting kids share utensils, drinks, or snacks when viruses are going around.
Keep sick kids home: Give your child time to rest and fully recover before returning to school or daycare. This stops the virus from spreading to others.
Teaching your child these simple habits now can help prevent a lot of sick days later. These don’t just protect your child but also other kids, whether at home, school, or daycare.
Little Bellies Deserve Big Care
Stomach flu may be common, but that doesn’t make it any easier to watch your child feel miserable. It may be a short-lived virus, but it can feel long and exhausting when your little one is hurting. Trusting your gut and knowing when to ask for help makes all the difference.
If something doesn’t feel right or you simply want reassurance, connect with a CMCFresno pediatrician. Our pediatric team is here to support you, answer your questions, and prioritize your child’s comfort.
Can my child get the stomach flu more than once in a season?
Yes. Because multiple viruses (like norovirus and rotavirus) can cause stomach flu, it’s possible for your child to catch a new strain even after recently recovering.
Is it okay to give my child dairy after a stomach bug?
Some kids temporarily become sensitive to dairy after vomiting or diarrhea. It’s best to reintroduce dairy slowly and watch for any stomach upset.
My child is better, but still refuses to eat. Should I be worried?
Appetite often returns gradually. Focus on fluids first. If they’re staying hydrated and slowly accepting bland foods, it’s normal. Call your pediatrician if it lasts more than a few days.
How long should I keep my child home after symptoms stop?
Kids can still be contagious for up to 48 hours after symptoms end. It’s safest to wait at least two full days before sending them back to daycare or school.