Signs of Intussusception in Babies
The short answer
Intussusception is a serious but treatable condition where part of the intestine telescopes into itself, causing a blockage. The classic signs are sudden episodes of severe pain (baby screams and pulls legs up), vomiting, and eventually "currant jelly" stools (blood and mucus). It's most common between 6-18 months and requires immediate emergency care.
By Age
What to expect by age
Intussusception is less common in babies under 6 months but can still occur. In young babies, symptoms may be harder to recognize. Watch for unusual crying patterns, especially sudden, intense screaming episodes that come in waves. Baby may pull legs to chest, then seem normal for 10-20 minutes, then scream again. Vomiting and lethargy are common early signs.
This is peak age for intussusception. The classic pattern is sudden, severe belly pain that comes in waves (every 15-20 minutes). During pain episodes, baby screams intensely, pulls legs up, and may vomit. Between episodes, baby may seem lethargic or even normal. "Currant jelly" stools (dark red, jelly-like, with blood and mucus) usually appear later but are a key warning sign. Some babies have a palpable "sausage-shaped" mass in the belly.
Intussusception remains fairly common in this age range. Symptoms are similar to younger babies but toddlers may be able to point to their belly or show you where it hurts. The pattern of pain coming and going in waves is still the hallmark. Don't wait for bloody stools - early treatment is much more effective. Any sudden, severe abdominal pain deserves immediate evaluation.
While less common after age 2, intussusception can still occur. In older toddlers, it's sometimes triggered by a "lead point" like swollen lymph nodes from a recent illness. Symptoms include severe belly pain, vomiting, and possibly blood in stool. Older children may be able to tell you their belly hurts badly.
What Should You Do?
When to take action
- Fussiness or crying that has an identifiable cause (hunger, gas, tiredness)
- Belly pain that improves with comfort measures or passing gas
- Normal stools, even if they vary in color from feed to feed
- Baby who remains active and interested between fussy periods
- You're concerned about unusual crying patterns or belly pain
- Baby has had several episodes of vomiting in a short period
- Changes in stool appearance that worry you
- Sudden, severe crying episodes that come in waves (every 10-20 minutes)
- Baby pulls legs tightly to chest and screams inconsolably
- "Currant jelly" stools - dark red, jelly-like, containing blood and mucus
- Vomiting bile (green or yellow)
- Baby becomes pale, sweaty, or lethargic between pain episodes
- You can feel a hard, sausage-shaped lump in baby's belly
- Baby's belly is swollen and painful to touch
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.