After Brazilian butt lift, one butt cheek is rock hard. Does this mean the fat is dead? (Photo)

Definitely contact your surgeon ASAP.  There are many possible causes, Hematoma, Seroma, Swelling, or maybe more fat was placed on that side to even things out.  There is no way for us to know on the internet by just looking at your pics.  You should be asking YOUR surgeon this question!  Good luck

enny this is not typical. Please stay in close contact with your plastic surgeon.  You're right side has unusual redness. It's possible you have a hematoma. It's a little early to show evidence of infection but you need to make sure that nothing it's happening but needs intervention. Depending on what the underlying processes is will determine if something needs to be done or what your results will be. This is not something that should be managed through real self but rather with your plastic surgeon but being seen in person. Best, Mats Hagstrom M.D.