<s>[INST] I had a tummy tuck 10 weeks ago and sometimes have a bulge near my belly button, made woese after excerise, its ok of a morning but get sore as the day goes on, not painful but tender to press on sometimes. Is this still fluid or swelling or something I should be concerned about. Thanks [/INST] Hi. Thanks for your history. Tummy Tuck surgery is a good aesthetic surgery. The most probable cause can be as you have rightly thought is collection of fluid called as Serbia. Another cause if possibly a development of hernia. The best way to get a diagnosis is to undergo high resolution ultrasonography- aspiration if Serbia as a diagnosis and therapeutic procedure followed by tight bandage. Get operated it this is a hernia. </s>