Swelling, discomfort, and bruising are common side effects of any surgical procedure, including hernia repair surgery. Swelling occurs as a result of the presence of fluid in the surgical area while the body heals. Following a hernia procedure, bloating may occur in the abdominal area, or the addition of mesh may result in a slight expansion where it is placed. Swelling and bloating should subside as the body heals and adjusts to any medical devices, which usually takes a few days or weeks. Swelling will be more noticeable in larger hernias and surgical areas, and it may take several months for it to decrease.