7 weeks post BBL. I started sitting. Even with 2 hours of sitting, when I get up that area is flat. Help? Is it safe to sit?

Thank you for your question! For my patients having a BBL surgery, I recommend they stay completely off of their butt for the first 10 days, then start using the bbl pillow for the following 3 weeks. After 6 weeks, they have no sitting restrictions and sitting should not effect their surgical results. Best of luck!

Your plastic surgeon's recommendations are the most informed you can obtain.
Recovery from BBL is patient dependent. Much of this depends upon the amount of liposuction performed and the amount of fat transferred. I usually recommend about 6 weeks before sitting without a pillow.  I have observed that between 4 and 6 weeks the buttocks tend to stabilize in volume.  Usually by 3 months, the swelling is minimal and totally resolved by 6 months.  
Kenneth Hughes, MD, ABPS Board Certified Plastic SurgeonLos Angeles, CA

Hello dear!!
Thanks for the question and provided information as well.
I recommend my patients not to sit for more than 30 mins. every two hours, for the first 2 weeks. At week 8, sitting for longer periods should not damage your results. If you have any concerns, I suggest you to follow up close with your plastic surgeon.Hope this is helpful. Good luck :)

Your description sounds like you have swelling in your buttocks. When you sit the pressure pushing the swelling out of that tissue. Once you stand up and the pressure goes away, the swelling or edema returns. It is safe to sit after a BBL almost immediately as far as preventing cell death, there is not any literature to support that not sitting helps more fat survive. I personally believe that sitting early post op (first 7-10 days) can change the shape. 

you were still swollen and sitting pushes the Adam and his fluid out creating a flat spot  That's why the shape returns with time. This also means your results are not final.  You will not hurt your results by sitting at this far out from your procedure  Best, Mats Hagstrom MD