<s>[INST] Hi. My mom had knee surgery last week. She has been feeling fine. Today we noticed her leg below the knee is slightly red and warm to the touch. But she has no pain anywhere or numbess in her feet. I left a message with the doc but i haven t heard from them. Should I be concerned? [/INST] Dear Patient, Welcome, and thanks for sharing your concern I went through your query, and I feel, it would have been better if you had described what knee surgery she had and what medication is she on. It seems there is infection, but you need to see the operating surgeon for confirmation, it's a thing to be concerned with, so do not waste time and consult early. I hope my advice would have been useful, in decision-making regarding your treatment, still if you have any clarifications or doubts feel free to contact back. Thanks. </s>