What causes newborn babies to cry and fuss?

Newborn crying may be caused by hunger, overfeeding, environmental factors, or a cold abdomen.

1. Hunger

Newborns cannot express their needs verbally. If feeding intervals are too long or the amount of milk is insufficient, prolonged hunger often leads to crying in newborns.

2. Overfeeding

Newborns' bodily functions are not yet fully developed, and their digestive systems are generally immature. Excessive feeding can lead to overfullness and bloating, which may result in crying.

3. Environmental factors

The environment inside the uterus differs significantly from the external world. Shortly after birth, newborns may have difficulty adapting to the outside environment. If room temperature is too high or too low, or if lighting is too bright or noise levels are excessive, newborns often feel uncomfortable and may cry.

4. Cold abdomen

Newborns have thin layers of subcutaneous fat. If caregivers fail to provide adequate warmth, the baby's abdomen can become chilled, irritating the gastrointestinal tract and reducing digestive function. This often causes abdominal discomfort after feeding, leading to crying.