Two-month-old babies vomiting watery liquid may be the cause of gastroesophageal reflux, or it may be caused by breastfeeding posture, intestinal flora imbalance and so on. The causes are different, and so are the treatments, including adjusting eating habits, paying attention to breastfeeding posture, and medication. 1. Adjustment of eating habits: because the baby is still small, the digestive system is not fully developed, once fed too much will cause digestive difficulties, in order to help digestion baby will secrete a lot of saliva, causing the baby to spit up clear water liquid. Through many times a small amount, diligent burping, can help the baby to promote absorption, to avoid the baby spit clear water liquid. 2. Pay attention to breastfeeding posture: incorrect breastfeeding posture, squeezing the baby’s stomach, can also lead to gastroesophageal reflux, causing the baby to vomit liquid. The correct breastfeeding position is for the baby to lie flat, with the head slightly raised. 3. medication: the baby appeared this phenomenon may also be the intestinal flora imbalance caused by the timely medical treatment, follow the doctor’s instructions to take probiotics and other drugs to ease. Two months baby spit up water liquid may also have other reasons, it is recommended to go to the hospital, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.