In 35 patients, the rate of catheter-related bloodstream infection was 91.4%; the rate of exit-site catheter infection was 25.7%; in exit-site catheter infection, local symptoms include 88.9% had swelling; 66.7% had red; 33.3% had pain; 33.3% had purulence; systemic symptoms include 100% had fever; 46.9% had chills; 12.5% had dyspnea, 0% had consciousness disorder; the most common pathogens are Staphylococcus aureus 81.8% (blood) and 50.0% (catheter).