For patients with primary tumors of the liver, diarrhea is often considered in two ways. In the first case, the patient has gastrointestinal dysfunction and intestinal flora imbalance, which is mostly seen after chemotherapy or other immunotherapy, and then diarrhea will occur. For this situation, we need to actively consider oral Jin Shuangqi capsule and Trimethoprim maleate capsule for active treatment. In addition, patients should also consider whether there is chemotherapy or radiotherapy treatment, the patient’s white blood cells are too low and cause systemic infections, this situation requires patients to actively isolate, and actively to raise the white blood cells of the treatment. In the second case, the patient may have gastrointestinal tumor metastasis, for the intestines, there may be diarrhea after the tumor metastasis in the colon.