My exclusively breastfed baby has regurgitated with yellow after nursing. Should I be worried?

Régurgitations in babies are common and usually not a cause for concern. They typically consist of milk and saliva coming back up from the stomach. Regurgitations usually decrease around 6 months of age and disappear by 1 year of age. A yellowish regurgitation is generally not something to worry about. However, it is important to contact a doctor if your baby shows signs such as the presence of blood, difficulty gaining weight, choking on the regurgitations, vomiting forcefully, turning blue due to regurgitations.