Some mild day-to-day abdominal puffiness can still happen after a tummy tuck because of salt intake, activity, weight change, bowel bloating, posture, and lymphatic drainage changes. However, swelling that is persistent, increasing, one-sided, painful, or clearly different from your usual pattern two years after surgery should be evaluated rather than assumed to be normal healing. An in-person exam with your plastic surgeon or another board-certified plastic surgeon can help separate soft tissue swelling from scar tightness, residual fat, loose skin, fluid collection, hernia, muscle repair weakness, or abdominal bloating unrelated to the surgery. Depending on the exam, an ultrasound or CT scan may be useful. Seek prompt care if the area becomes red, hot, very painful, rapidly enlarges, drains fluid, or you develop fever.