Swallowing bubble gum in a two-year-old baby may cause vomiting, but it usually has little effect. The main components of bubble gum are edible gum and sugar. When a baby swallows bubble gum, the sugar component of bubble gum is usually digested and absorbed by the digestive system. And bubble gum in the edible gum, although can not be digested by the human body, but generally does not cause harm to the human body, usually with the gastrointestinal peristalsis and gradually out of the body. However, if the baby did not completely swallow the bubble gum and stuck in a part of the throat, may cause coughing, nausea, vomiting and other phenomena, if it continues to be unrelieved, it is recommended to go to the hospital immediately for treatment. In addition, babies may experience mild abdominal discomfort, nausea, vomiting, etc. after swallowing bubble gum, and the abdomen can be massaged to relieve the discomfort. However, if the baby has severe abdominal pain, repeated vomiting and other symptoms, should be promptly to the hospital for treatment.