Although it is the most common complication of an abdominoplasty, seroma formation is more of a nuisance than a serious problem in the majority of cases. It may occur in as many as 15% of abdominoplasty patients. Seroma formation is a result of fluid accumulation as your body attempts to fill a potential space. Most seromae resolve with only a few drainage attempts, without an incision. In cases where post-abdominoplasty seromae fail to resolve, lining of the fluid pocket needs to be excised because this is what makes the fluid.