Why is my skin so jiggly when I am not fat? Is it a genetic disorder?

Thank you for your question. Removal of excess fat and contouring of the bra-roll area is performed using liposuction. Excess fat is removed to create a smooth contour between your back, waist, hips and thighs. 

Bra rolls are a common complaint and can be treated with liposuction. I recommend a hi-definition procedure. I use VASER HI DEF with ThermiRF, ultrasound and fat grafting to get the most fat removal, skin tightening, and contouring.  HD contouring is much more complex, defining and can give the best in skin tightening, cellulite reduction, and body shaping. I suggest a consult with a hi-def physique liposuction expert. Best, Dr. Emer

This is a common complaint I see in my practice.  Without a photo it isn't possible to judge your situation accurately but bulges in the back braline area can be attributed to fat and/or loose skin.  This can be caused by a combination of genetics, past weight gain/loss, and loss of skin elasticity over time.  Many of my patients who are in good shape have this complaint and for those patients, the bulges are attributed to loose skin.  The only way to streamline that area for those women is with a braline back lift.  Liposuction can be combined with this if there is enough subcutaneous fat in that area as well.

I always recommend seeing board certified Plastic Surgeons in your area to confirm these recommendations.  Good luck to you.