When women vomit during breastfeeding, there are reasons such as improper diet, indigestion and acute gastroenteritis, which can be treated by adjusting diet, consuming probiotics or antibiotics. 1. Improper diet: If a woman eats too much food too fast or eats too much greasy food during breastfeeding, she will be prone to vomiting. At this time, she should eat a light diet and adjust the structure of her diet to reduce the burden on her stomach and intestines. 2. Indigestion: If the digestive function is abnormal during breastfeeding, and vomiting is easy to occur under normal diet, it may be due to the imbalance of intestinal flora, and you can take probiotic drugs such as bifidobacteria to treat it. 3. Acute gastroenteritis: if a woman is infected by bacteria and other pathogens when the vomiting, but also accompanied by abdominal pain, diarrhea, you can use antibiotic drugs for treatment, such as cephalosporin, etc., at this time, you need to stop breastfeeding, to prevent the drugs have a negative impact on the fetus. When breastfeeding women appear vomiting symptoms continue not to ease, it is recommended to go to the hospital in a timely manner, under the guidance of the doctor for treatment, to avoid unauthorized use of medication, to prevent the adverse consequences of triggering.