<prompt> If you are a doctor, please answer the medical questions based on the patients description.I had gall bladder surgery 5 weeks ago and they repaired a hernia at the same time. However, I had the flu last week and was vomitting a lot so I think this strained my hernia. I have redness around my belly button it is very tender above it. What do you think it is?  <response>: Hi.it is best if you do a follow-up consult with your surgeon for physical examination and clinical evaluation regarding your concern. Your post-operative wound might have developed an inflammation or a Serbia formation. Daily wound care and completion of antibiotic regimen is also recommended. Other diagnostics and management will be directed accordingly. Hope this helps. Good day!! Chat Doctor. 