For patients with constipation caused by intestinal flora, treatment with Bacillus subtilis dictyostelium is able to increase bowel movements; at the same time, an increase in the number of diarrhea can be seen as an adverse effect of this drug. Bacillus subtilis dictyostelium is a drug containing Bacillus subtilis and enterococci, which can inhibit pathogenic bacteria, replenish the normal physiological flora, promote the absorption of nutrients, digestion, inhibit the production and absorption of intestinal toxins, and can be clinically used to treat constipation, diarrhea, flatulence, indigestion, and other symptoms caused by intestinal flora imbalance. Therefore, for patients with constipation caused by intestinal flora, the use of Bacillus subtilis dictyostelium is able to play a role in increasing defecation after treatment. It should be noted that people who are allergic to this drug should not use it; no significant adverse reactions were seen during treatment with the recommended dosage of this drug, and an increase in the frequency of diarrhea was rare, but it could be restored after stopping the drug. Patients who need to use bacillus subtilis dictyostelium treatment are recommended to use the drug under the guidance of a doctor, if the phenomenon of increased bowel movements after the use of the drug is serious, it is recommended to go to the hospital for medical treatment.