Is It Colic or Just Gas?
The short answer
Gas causes temporary discomfort that improves when baby passes gas or poops, while colic involves intense, inconsolable crying for 3+ hours at a time, at least 3 days a week, often at the same time each day. Gas is extremely common; true colic affects about 1 in 5 babies and typically starts around 2-3 weeks and resolves by 3-4 months.
By Age
What to expect by age
In the first two weeks, most fussiness is related to gas, hunger, or normal newborn adjustment. True colic typically hasn't started yet. If your newborn seems gassy, focus on feeding position, proper latching (if breastfeeding), and burping technique. Some fussiness in the evening is normal for all babies.
This is when colic typically begins if it's going to happen. You'll notice a pattern: intense crying episodes that start around the same time each day (often late afternoon or evening), lasting for hours. The "Rule of Threes" helps distinguish colic: crying for 3+ hours, at least 3 days per week. Gas-related fussiness is more sporadic and shorter.
If it's colic, this is often the peak period. The crying can be extremely intense and difficult to soothe. With gas, baby usually calms after passing gas or with comfort measures. Colicky babies may pull legs up, arch their back, clench fists, and have a red face, but these signs can happen with gas too. The duration and intensity are the key differences.
Colic typically resolves on its own around this age, often improving suddenly. If "colic" continues past 4 months, it may actually be something else like reflux, food sensitivity, or gas. Talk to your pediatrician about persistent fussiness beyond this age.
What Should You Do?
When to take action
- Fussiness that comes and goes, related to gas or hunger
- Crying that stops when baby is picked up, fed, or passes gas
- Baby is easily comforted with movement, white noise, or pacifier
- Fussy periods that vary in timing and duration from day to day
- Baby has plenty of calm, happy periods throughout the day
- Crying episodes that follow the "Rule of Threes" pattern
- You're feeling overwhelmed or exhausted by the crying
- Baby seems to have pain that common comfort measures don't help
- You want to rule out other causes like reflux or food sensitivities
- Baby has a fever along with inconsolable crying
- Crying is accompanied by vomiting, bloody stool, or severe diarrhea
- Baby seems weak, lethargic, or won't wake to feed
- You feel like you might hurt your baby due to frustration or exhaustion
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.