Two months baby old fart, may be some physiological phenomenon, may also be the manifestation of certain diseases, such as gastrointestinal dysfunction, indigestion, etc., should be timely consultation to identify the cause. 1. Physiological factors: Considering that the baby drinks milk too fast, or cries during the drinking process, thus swallowing a lot of gas, resulting in the phenomenon of old farts. 2. Pathologic factors: (1) Due to too much food, too often, will increase the burden on the gastrointestinal tract, resulting in gastrointestinal dysfunction performance; may appear the phenomenon of farting, but also belching (hiccups), abdominal distension, diarrhea, constipation and other symptoms. (2) Indigestion, mainly because the food eaten is not easy to digest or not suitable for babies to eat; the phenomenon of farting may occur all the time, which may be accompanied by epigastric pain, abdominal distension, early satiety, belching, anorexia, heartburn, acid reflux, nausea, vomiting, and burning sensation of the epigastric region and other symptoms. It is difficult to diagnose by this symptom alone. There are more reasons for babies to fart all the time, and other factors cannot be ruled out. It is recommended that if parents exclude physiological causes, they should bring their children to the doctor in a timely manner, so that the doctor can clarify the cause and give targeted treatment.