There are large individual differences in the time it takes for a weaning baby to accept formula milk. Children with good adaptability usually accept formula milk in 3-7 days, while children with poor adaptability may take about 10-15 days or even longer. Due to the large individual differences in children, the exact time to accept formula milk after quitting breastfeeding may vary depending on the degree of gastrointestinal function development and the taste of the formula milk. If the child’s gastrointestinal tract is well-developed and functions well, the taste of milk powder is suitable, and the baby can adapt well to the change from breast milk to milk powder, the time to accept milk powder will be shorter, and it may only take 3~7 days. If the child’s gastrointestinal tract is not well developed or the taste of the milk formula is not suitable, the time for the child to accept the milk formula may be longer and may take 10~15 days. If your child develops fever, vomiting as well as digestive symptoms such as diarrhea during the withdrawal period, it is recommended that he/she go to the hospital in a timely manner to avoid adverse consequences.