For people with alternating constipation and diarrhea, it is recommended to take oral probiotic treatment, and the commonly used probiotics in clinical practice are Clostridium typhimurium live tablets, Bacillus subtilis live capsules, Bacillus coagulans, Bifidobacterium gold and so on. Because probiotics can play a role in regulating intestinal flora disorders, and constipation or diarrhea is mainly due to gastrointestinal dysfunction and intestinal flora imbalance. Therefore, taking probiotics can improve the symptoms of constipation and diarrhea. For the dosage of probiotics, it is recommended to consult the drug instructions or consult a specialist. However, for people with alternating constipation and diarrhea, it is recommended to go to the hospital in time and cooperate with the doctor to check the e-colonoscopy to help understand whether there are organic lesions of the intestine, such as colon malignant tumors, etc. If necessary, it is necessary to cooperate with the doctor to give regular treatment.