I had open inguinal hernia surgery a few days ago, i noticed a lot of swelling at and around the incision, is this normal, what causes this, how long should it last and what could i do to reduce it.

Post Surgery issues: It is most likely just normal. But, if there is hot red and/or pustular drainage..Or if the pain is intolerable these should be reported to your surgeon. Surgeons want to be on top of any post op complications that may arise. I would bet you were sent home with some instructions that would list the common problems and what to do about them.

Not normal but...: Depending on the size of the hernia, how much disection was done, etc. There can b a lot of swelling after hernia surgery. This can be due 2 blood, inflamtory fluids or just swelling of the tissues that were handled . For the first days ice may help to limit the swelling. After 3 or 4 days switching to heat may help to mobilize the fluids from the wound. Can take 4 -6 weeks 2 fully resolve.

Probably normal: If the repair was done with an open technique, there is usually swelling and a firmness felt under the length of the incision. Ice and antiinflammatory medication can help. If it is really large, call your surgeon to check it out - could be bleeding under the skin we call a hematoma. Hope you recover quickly!