Oncology inpatients all have long-term infusion problems, such as repeated multi-course chemotherapy infusion, infusion with radical radiotherapy, and long-term nutritional infusion for patients with advanced tumors. Daily disposable steel needles or trocar needles that can only be kept for a maximum of 7 days not only increase the pain of patients, but also increase the damage to the blood vessels, ultimately resulting in the situation of no blood vessels available, and PICC catheters can solve this problem. What is a PICC catheter? PICC (central venous catheter via peripheral venous puncture) is a long, thin, flexible and bendable catheter, which is operated by a professional nurse in the same way as the usual nurse’s injection, and is placed in a vein from the elbow or upper arm, along the vessel to eventually reach the large vessels near the heart, while the end is left outside the body to facilitate the infusion of fluids. What are the advantages of PICC? l.Avoid the irritation of various drugs to the intima of blood vessels and protect the blood vessels. 2.Reduce the pain of repeated venipuncture of patients, the longest can be retained for six months to a year. 3.Ensure the safety of infusion and help you complete all kinds of intravenous infusion treatment easily. What can happen to common infusion? Some irritating drugs, such as chemotherapy drugs, mannitol and highly concentrated drugs, do not use the central venous route such as PICC, the drugs may cause damage to your veins and develop phlebitis and tissue necrosis in the upper and lower extremities, and the damage caused by these drugs to the veins is irreversible. What do I need to pay attention to after PICC placement? l.You can take the tube home and do general housework: such as cooking, washing dishes, sweeping the floor, etc. 2.The arm can do general activities, such as bending, stretching, pay attention to avoid excessive force of the arm with the tube, lifting heavy objects. 3.Be careful not to tighten the cuffs of your clothes too much. 4.Avoid measuring blood pressure and squeezing venous puncture on the side of the arm where the tube is placed. 5.After the puncture point and catheter are properly protected, you can take a shower, but you cannot swim. What are the usual situations that require contacting the hospital? l. There is resistance to flushing the catheter, and it is not open. 2.The puncture site has oozing fluid and blood, and pressure is not effective. 3.Local redness, swelling, heat and pain at the puncture site, with secretions. 4.The catheter is displaced or dislodged. 5.Fever greater than 38°C for any reason. 6.Swelling of the arm on the side of the catheter placement, with an increase in arm circumference of more than 50px.