The yellow color of baby’s spit up milk may generally be related to normal physiological phenomenon, indigestion, respiratory tract infection and other factors.
1. Normal physiological phenomenon: after a baby eats milk, the milk in the stomach after a period of time in the digestive reaction, resulting in the color of the milk yellow, so spit out the milk will be yellow.
2. Indigestion: babies who eat too much milk and do not digest it completely, mixed with gastric juices and spit it out together, may make the milk stains yellow.
3. Respiratory infections: Bacteria or viruses cause infections in the baby’s respiratory tract, resulting in phlegm in the pharynx, which is expelled with the spit-up and may make the milk stains yellow.
Baby spit up yellow, there may be other reasons, it is recommended to go to the hospital for examination, clear causes, and active symptomatic treatment.