According to answers posted on this site it seems that performing a tummy tuck without a drain is seldom recommended. There was a similar debate concerning drains after a facelift many years ago, and again surgeons divided into those that did drain and those that did not.
Today, very few surgeons consider using a drain in a facelift procedure, and my feeling is that in tummy tuck, in the future, few surgeons will continue placing a drain. In our practice for the past nine years, we have stopped using drains in our tummy tuck patients and have not suffered a single problem or complication from not doing so. Really.
Omitting the drain actually represents a cost savings which can be passed on as a lower overall cost of the procedure. Changes in surgical practice should be adopted slowly and with care. However, there are an increasing number of surgeons who have reduced or eliminated the need for drains in abdominoplasty safely, and to the benefit of all.
Best of luck,