Colic is one of the most stressful things for new parents. Your baby cries a lot, especially in the evenings. You may feel helpless and frustrated. The good news is, colic is common, and most babies outgrow it. Understanding the causes can help parents feel calmer and know how to support their baby.
1. Immature Digestive System
One of the main reasons babies have colic is that their digestive systems are still developing.
- Newborns have tiny stomachs and intestines that are learning to process food.
- Gas can build up easily, causing discomfort and crying.
- Their muscles and nerves in the digestive tract are still maturing.
This means even normal feeding can sometimes make them uncomfortable. Over time, as the digestive system grows stronger, colic often gets better.
2. Swallowing Air During Feeding
Babies often swallow air while feeding, especially if they are bottle-fed or feed too quickly.
- This air can get trapped in the stomach or intestines, causing gas and pain.
- Crying and fussing can make the problem worse, as babies swallow more air.
- Tips to reduce air swallowing:
• Hold the baby upright during feeds
• Use slow-flow nipples for bottles
• Burp the baby gently and often
By paying attention to feeding habits, parents can reduce some of the discomfort caused by trapped air.
3. Food Sensitivities or Allergies
Some babies are sensitive to certain foods. This can happen in breastfed or formula-fed babies.
- Common triggers include cow’s milk protein, lactose, or other ingredients in formula.
- In breastfed babies, foods the mother eats (dairy, caffeine, spicy foods) may sometimes affect the baby.
- Signs may include increased crying, gas, bloating, or skin rashes.
Keeping a simple food diary and talking with a pediatrician can help identify possible sensitivities and manage them safely.
4. Gut Bacteria Imbalance
A baby’s gut is developing from birth, and the balance of bacteria can affect digestion.
- An imbalance in gut bacteria may lead to more gas, bloating, and fussiness.
- This is sometimes why probiotics are recommended for some babies, under pediatric guidance.
- Introducing probiotics slowly and safely can help improve gut comfort.
A healthy gut helps the baby digest milk better and may reduce colic symptoms over time.

Comfheat Colic and Gas Relief for Newborns and Infants
5. Sensory Overload or Environmental Factors
Babies are sensitive to the world around them. Too much noise, bright lights, or stimulation can trigger colic-like crying.
- Evening crying is sometimes linked to overstimulation during the day.
- Fatigue or being too hot or cold can also make colic worse.
- Creating a calm environment, soft lighting, and gentle soothing can help.
Parents who understand that crying may be from discomfort, not hunger, can feel less stressed and respond more calmly.
FAQ Section
Q: How long does colic usually last?
A: Most babies improve by 3–4 months. Crying may gradually decrease week by week.
Q: Can food cause colic in breastfed babies?
A: Sometimes. Dairy, caffeine, or spicy foods in the mother’s diet can trigger sensitivity in some babies.
Q: Is crying always colic?
A: No. Babies cry for hunger, diaper changes, or sleepiness. Colic is usually defined as long, intense crying with no clear reason.
Q: Can probiotics help colic?
A: Some babies may benefit, but always ask a pediatrician first. Probiotics are not a guaranteed solution.
Q: When should I call a doctor for colic?
A: Call a doctor if your baby loses weight, vomits often, has blood in stool, fever, or cries in extreme pain.