The duration of chemotherapy hospitalization is usually about 1 week. The duration of the first chemotherapy hospitalization varies according to different diseases, different tumors, patient’s response, etc. Some tumor chemotherapy regimens will be fully administered on day 1, and the patient can be discharged after 3-4 days of hospitalization for observation, review of patient’s blood count and observation of patient’s gastrointestinal response. While some chemotherapy is given on day 1, day 2 and day 8, and the hospital stay takes about 10 days. The hospitalization time 1st chemotherapy is mainly based on the patient’s physical status and response to chemotherapy. Most of the chemotherapy can show hair loss, gastrointestinal reactions, nausea, vomiting, diarrhea, bloating, constipation, etc. There are also toxic side effects such as bone marrow suppression, white blood cell drop, platelet drop, anemia, etc. Some patients need PICC placement for the first chemotherapy treatment. Before placement, patients should be evaluated to see if their physical condition can tolerate chemotherapy and placement, and also to observe the side effects after placement, whether there are blood clots, local redness and swelling.