Why is one of my butt cheeks bigger than the other? (photo)

Everyone has assymetry in different sides of their body. If this bothers you see a plastic surgeon who does fat transfer and they can enlarge the smaller side or liposuction the large side to make it smaller. Also they could check you to make sure it is not from a spine curvature or hip tilt that makes the buttock look uneven. Good luck.

Hi and thanks for the question and photo. There are many reasons for having buttocks asymmetry including your bone structure / pelvis. It appears form the photo that you may have a tilt to your pelvis contributing to the difference between the two sides of your buttocks. Best of Luck - Dr Hardy

Everyone is asymmetric and just like elsewhere on the body, the two buttock cheeks are often a bit different.