Best BBL faja (butt in or out)?

A BBL compression garment should have tight compression on the abdomen or areas that had liposuction and NO compression on the buttocks or hip area where fat has been injected.  Therefore, a faja with a thong back or open butt area and high sides is ideal. 

Follow your plastic surgeon's advice.  Plastic surgeon preferences for compression garments and length of time to wear differ.  I typically ask patients to use adjustable garments with multiple bands so that tension can be adjusted and the areas of liposuction are less likely to get a fluid collection. The garments typically do not cover the buttocks. Kenneth Hughes, MD, ABPS Board Certified Plastic SurgeonLos Angeles, CA

Dear blackgirlsurg,
every plastic surgeon has his own postoperative protocol which he recommends to his patients. Your compression garment should provide pressure on abdomen and not on buttocks in order to reduce swelling.  I would suggest you to discuss this with your plastic surgeon.
Daniel Barrett, MD

Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery