<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing leg swelling, my skin on arm or hand looks infected, I recently had a pregnancy, and my belly button is irregular. What could be the matter?  <response>: Based on your symptoms, it appears that you have a postoperative infection, which can occur after surgery or other medical procedures. It is important to seek medical attention right away to prevent the infection from spreading further. 