Indentation on bottom of one butt cheek?

Hi,

I noticed that I have an indentation on the very bottom of my left butt cheek. It kind of dips in and makes my butt look uneven because just the left one has this indentation. What is the cause of this? Is it uneven fat distribution or uneven muscles? I’m right leg dominant but it seems kind of weird that it just goes inward in one spot. It’s not a side indentation. Will working out help even this out at all??

by grumpsneko via Bodybuilding.com Forums - Female Bodybuilding