Dr. Michael Persky: Fat transfers are interesting in that there's a certain amount of take to the fat transfer. In other words, when we do a fat transfer procedure, we know that approximately 40% to 60% of that fat will take and live. What we tell patients is the fat that you have after your fat transfer that's present five to six months after the procedure, is going to be there permanently. That's both good and bad. If there's too much fat, it's going to be there forever. If there's too little fat, well, if there's the right amount of fat that's great because it's a permanent solution.

The other thing to be wary of with fat transfer, particularly in young patients is that if a patient gains a large amount of weight, say 50, 60, 70 pounds, that fat will also hypertrophy, and we've seen cases, fortunately not in our practice, but at meetings there are pictures of patients who gain a lot of weight and their face just really expands. You have to be careful using fat transfer in younger patients. It is a permanent filler but it's unpredictable. And we know it's permanent because of the cases where there was too much, a lump or bump here, and then it can be difficult to get out.

How Long Does the Fat Last After a Fat Transfer?

Dr. Michael Persky addresses the question of how long a fat transfer will last and advises people getting the transfer when they are thin to be careful when they gain weight.