The exact cause of colic is not well understood, but several theories exist:
Gastrointestinal discomfort: Gas, indigestion, or an immature digestive system may contribute to colic. Food allergies or intolerances: Some infants may react to certain proteins in breast milk or formula. Overstimulation: An immature nervous system may make it difficult for infants to process and cope with environmental stimuli. Parental stress: High levels of stress in parents may contribute to the infant's distress. Immature nervous system: The baby's nervous system may not be fully developed, leading to difficulty in regulating emotions and crying.