<s>[INST] I had total knee replacement six weeks ago. Last week I was cleared to swim.six days after swim I work up with bloody yellow liguid pus I. O e tiny sectionpf survival site. I called Md and will be starting on antibodics today. I willserdr onmonday. Should I worryabout I fectipn [/INST] Hi there. You should be worried about pus discharge, especially if it's coming from the area on or around the operated site. If you're having any operated site infection which is coming from the joint then that's bad news. But if you're having pus discharge from a site away from the operated site, then there is little cause for concern. The only thing I would be worried about in that case that the infection might spread from that site to the joint through bloodstream. So a course of antibiotics to control the infection as soon as possible is a wise thing to do. Please go ahead with the checkup and keep the area of infection clean. Do simple and regular Chat Doctor. Post replacement surgeries one does need to be careful. </s>