The flatulence after taking Bifidobacterium Bifidum Quadruple Bacteria may be caused by eating potato and other food that is easy to be flatulent during the period of taking the medicine, or it may be due to the failure to choose the appropriate medicine for the cause of the disease, or the body is intolerant to the medicine and produces gas. Bifidobacterium Bifidum 4-Linked Tablets contains Bifidobacterium infantis, Lactobacillus acidophilus, Enterococcus faecalis and Bacillus cereus, which can inhibit harmful bacteria, promote the growth of beneficial bacteria and accelerate gastrointestinal peristalsis, and is often used to treat diarrhea, constipation and functional dyspepsia related to imbalance of intestinal flora, and does not cause flatulence in general. It is possible that eating potatoes, soybeans and other foods that are easy to produce gas at the same time while taking the medication may cause bloating. It is also possible that other causes of bloating, such as Helicobacter pylori infection, have not been addressed by choosing the right medication for the cause. In patients with dyspepsia, the body is intolerant to the drug after taking probiotics, and bloating occurs when it breaks down in the body and produces gas. If bloating occurs during the use of the drug, excluding physiological reasons such as eating, you should consult a doctor in a timely manner, under the guidance of the doctor’s reasonable use of medication, do not blindly take it, in order to avoid adverse reactions.