Infantile flatulence mainly causes abdominal discomfort, but different patients have their own characteristics in terms of duration, mode of onset and scope of influence. 1. Duration of flatulence: mild flatulence can be relieved within a few hours, while severe flatulence can last for a few hours or even a few days. 2. Mode of onset of flatulence: Most infants with flatulence have an obvious relationship with eating, usually occurring after eating. Some patients suffer from abdominal pain when they eat fixed food, such as milk, eggs and so on. 3. The scope of influence of intestinal flatulence: most of the abdominal pain is full abdominal pain, diffuse distension, distension is seldom fixed in a certain area. If an infant develops abdominal pain, it is recommended to consult a doctor in time to make a clear diagnosis and then carry out targeted treatment.