I Think My Baby Has Rotavirus
The short answer
Rotavirus causes severe watery diarrhea, vomiting, and fever in babies and young children. Thanks to the rotavirus vaccine, severe cases have become much less common, but vaccinated children can still get milder infections. The illness typically lasts three to eight days, and the primary danger is dehydration. Keeping your baby hydrated is the most important part of treatment.
By Age
What to expect by age
Babies in this age range may have received only one or two doses of the rotavirus vaccine series and are not yet fully protected. Rotavirus in young infants can be particularly dangerous because they dehydrate quickly. Symptoms include profuse watery diarrhea, vomiting, fever, and irritability. If your young baby has frequent watery stools and vomiting, contact your pediatrician promptly and watch closely for signs of dehydration.
By six months, most babies have completed their rotavirus vaccine series, which greatly reduces the risk of severe disease. However, breakthrough infections with milder symptoms can still occur. The hallmark of rotavirus is watery diarrhea that can occur ten to twenty times per day along with vomiting. Continue breastfeeding or formula feeding, and offer small, frequent amounts of an oral rehydration solution as recommended by your pediatrician.
Toddlers with rotavirus may have a sudden onset of vomiting followed by watery diarrhea and low-grade fever. The vomiting phase usually lasts one to two days, while the diarrhea can persist for five to seven days. Most toddlers can be managed at home with careful attention to hydration. Offer oral rehydration solution, avoid sugary drinks like juice or sports drinks, and continue a normal diet as tolerated.
Older toddlers tend to handle rotavirus somewhat better than younger babies because their bodies have more fluid reserves. However, the diarrhea can still be severe and disruptive. Focus on hydration, hand hygiene to prevent spread to other family members, and cleaning contaminated surfaces with bleach-based products, as rotavirus is extremely contagious and can survive on surfaces for weeks.
What Should You Do?
When to take action
- Your vaccinated child has a mild episode of diarrhea and vomiting lasting a few days with adequate fluid intake and wet diapers
- Your child's appetite is reduced during the illness but they are still drinking fluids and gradually improving
- Your child's diarrhea is becoming less frequent each day and they are returning to their normal energy level
- Your baby has watery diarrhea and vomiting lasting more than a few days without clear improvement
- Your baby has a fever above 102 degrees Fahrenheit (38.9 degrees Celsius) along with the diarrhea
- You are unsure whether your baby is getting enough fluids or how to use oral rehydration solution
- Your baby shows signs of dehydration: fewer than six wet diapers in 24 hours, no tears when crying, dry mouth, sunken fontanelle, or unusual drowsiness
- Your baby is vomiting everything and cannot keep any fluids down for more than eight hours, or there is blood in the stool or vomit
Sources
Related Resources
Related Digestive Concerns
My Baby's Belly Looks Swollen
A rounded, slightly protruding belly is completely normal in babies and toddlers due to immature abdominal muscles and their proportionally larger organs. However, if the belly becomes suddenly swollen, feels hard and tight, or is accompanied by pain, vomiting, or changes in bowel movements, it needs medical evaluation as it could signal gas buildup, constipation, or rarely, something more serious.
My Baby Has an Anal Fissure (Blood When Pooping)
A small streak of bright red blood on the surface of your baby's stool or on the diaper is most commonly caused by an anal fissure, which is a tiny tear in the skin around the anus from passing hard stool. Anal fissures are very common in babies and toddlers and usually heal on their own with simple measures like keeping stools soft. While this is rarely serious, any blood in your baby's stool should be mentioned to your pediatrician.
My Baby Eats Non-Food Items (Pica)
It is completely normal for babies and young toddlers to explore by putting objects in their mouths. True pica, which is the persistent eating of non-food substances, is uncommon before age two and may be linked to iron deficiency or developmental factors. If your child repeatedly seeks out and eats non-food items past the typical mouthing stage, it is worth discussing with your pediatrician.
Baby Excessive Gas After Starting Solids
Increased gas after starting solid foods is completely normal and expected. Your baby's digestive system is encountering new proteins, fibers, and sugars for the first time and needs time to adapt. The gut bacteria are also diversifying, which naturally produces more gas. This typically improves within a few weeks as the digestive system adjusts to each new food.
My Baby Gulps Air While Feeding
Swallowing some air during feeding is normal for all babies, but excessive air gulping can lead to gas, hiccups, and spit-up. Common causes include fast milk flow, poor latch (if breastfeeding), bottle nipple flow that's too fast or slow, and crying before feeds. Simple adjustments to feeding position, pacing, and equipment can usually help reduce air intake significantly.
Baby Poop Color Changes with Solids
Dramatic changes in poop color after starting solids are completely normal and expected. What your baby eats directly affects stool color - carrots may turn poop orange, spinach makes it green, beets can make it reddish, and blueberries can turn it dark blue-black. As long as your baby is comfortable and the stool is not white, black (tarry), or bright red with blood, these color changes are harmless.