If your child has vomiting, diarrhea, or trouble keeping fluids down, get clear next steps based on their age, symptoms, and how long it has been going on.
Share whether you’re most concerned about vomiting, diarrhea, dehydration, fever, or how long symptoms have lasted, and we’ll help you understand what to do next.
Stomach flu in kids usually refers to viral gastroenteritis, which commonly causes vomiting, diarrhea, stomach cramps, and sometimes fever. Symptoms can look different in babies, toddlers, and older children. Many children improve with rest and steady fluids, but dehydration can happen quickly, especially in younger kids who are vomiting often or having frequent diarrhea.
Repeated vomiting or loose stools can make it hard for children to replace fluids. Watching how often symptoms happen can help you decide when home care is enough and when to seek medical advice.
Many cases start to improve within a few days, but some children may have symptoms that last longer. Ongoing vomiting, worsening diarrhea, or a child who is not bouncing back may need closer attention.
Younger children can get dehydrated faster than older kids. Babies and toddlers may show fewer clear signs, so changes in wet diapers, energy level, feeding, and tears can matter.
Small, frequent sips are often easier to tolerate than large drinks. If your child is vomiting, offering tiny amounts more often may help them keep fluids down.
Once vomiting eases, many children do best with bland, easy-to-digest foods. The goal is gentle reintroduction, not forcing a full meal before they are ready.
Greasy, very sugary, or heavy foods may make nausea or diarrhea worse for some children. A gradual return to normal eating is usually easier on the stomach.
Dry mouth, fewer wet diapers or bathroom trips, no tears when crying, unusual sleepiness, or dizziness can be warning signs that your child needs more urgent attention.
Children often tolerate hydration better when fluids are offered slowly and consistently. This can be especially helpful after vomiting episodes.
If your child cannot keep fluids down, seems weak, or is getting worse instead of better, it may be time to contact a doctor for guidance.
Call a doctor if your child shows signs of dehydration, has severe or persistent vomiting, has diarrhea that is not improving, has a fever with stomach symptoms that concerns you, or seems unusually sleepy, weak, or hard to wake. Babies with stomach flu may need medical advice sooner because they can lose fluids quickly.
Many children start improving within 1 to 3 days, though diarrhea can sometimes last a bit longer. If symptoms are getting worse, not improving, or your child cannot stay hydrated, contact a doctor.
Start with fluids and then add simple, easy-to-digest foods as your child feels ready. Avoid forcing food if they are still vomiting, and focus first on helping them stay hydrated.
Common symptoms include vomiting, diarrhea, stomach pain or cramping, nausea, and sometimes fever. Some children may also seem tired, less interested in eating, or more irritable than usual.
Toddlers can become dehydrated faster and may have a harder time telling you how they feel. Changes in drinking, urination, energy, and behavior can be especially important to watch.
Call if your child has signs of dehydration, cannot keep fluids down, has severe belly pain, seems very sleepy or hard to wake, or if symptoms are lasting longer than expected or causing you concern.
Answer a few questions to better understand vomiting, diarrhea, hydration concerns, and when it may be time to call the doctor.
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