Chemotherapy is one of the important means of anti-tumor treatment, and many patients will have stomach pain after chemotherapy, considering the following two main reasons: 1. chemotherapy drugs cause direct stimulation of the gastrointestinal mucosa, and spasm of the gastrointestinal mucosa occurs, which causes stomach pain. 2. because of the decrease of white blood cells and platelets after chemotherapy, patients are prone to complications of infection after the decrease of immunity, and after the occurrence of intestinal infection, patients can clinically manifest as stomach pain. It can also be manifested as stomach pain. For abdominal pain caused by these two causes, the following treatment measures are generally taken. For spasmodic pain, oral or intramuscular injection of 654-2 and other drugs can be considered to release the spasm of the gastrointestinal tract and thus relieve the pain. For abdominal pain caused by concurrent intestinal infection, in addition to giving antibiotics to control the infection, some oral medications should be given to elevate the white blood cells and platelets, as well as oral Bifidobacterium trituberculatum tablets to regulate the intestinal flora, which also has a good effect on the relief of abdominal pain.