Infant’s spit up material is a little pink color may be related to the infant’s diet, mother’s cracked nipple and other reasons. 1. Infant’s diet: If the infant ingests food of a specific color, such as red dragon fruit, before breastfeeding, it contains a certain amount of pigment. If the infant has not yet digested it, it will cause the spit-up material to be a bit pink. 2. Ruptured mother’s nipple: Due to improper feeding, the baby will easily break the mother’s nipple, and the blood and milk will be consumed by the baby, which will lead to the phenomenon of spitting up a little pink. There may be other reasons why babies spit up a little pink, so it is advisable to go to the hospital in time, complete the examination to clarify the cause, and then give targeted treatment or therapy.