The reasons for bloating after a cold are considered as follows: First, the immunity of the body decreases after a cold, the digestion and absorption function of the gastrointestinal tract decreases, and oral medication and dietary factors during a cold cause an increased burden on the gastrointestinal tract. Second, the cold is mostly caused by viral infections, especially enterovirus infection, can appear gastrointestinal tract dysfunction, bloating, diarrhea and other symptoms. Third, gastrointestinal reasons, some patients have gastrointestinal problems before the cold, after the cold, the abdominal distension situation is more obvious. Fourth, eating too much when eating, so do not eat too much when you have a cold to prevent the situation of abdominal distension.