Because catheters are both inside and outside your body, they are very prone to infection. It is very important to always keep your catheter clean and dry. Be careful not to pull or tug on the catheter, especially while getting dressed and undressed. Watch for signs of infection: redness, swelling, pain, pus or fever. Call your dialysis centre right away if you notice any of these signs. Ask your doctor to be sure you understand how to protect your catheter.