Ummm nope no clue. If your dr didn’t know I personally wouldn’t be asking internet strangers about butt rashes with pictures... call a dermatologist...
Are you sure it's not a bruise? It looks to me like you fell down or sat down a little too hard on an uneven surface - like a set of grated or non-slip/texturized stairs.
I have a bruising and red large spot on my lower back just above my butt cheek. I have ITP and so my platelets are dropping fast and my mom thinks it might be due to that. I have to see a hematologist so I’m gonna ask him.
Re: Rash on butt cheek
*Formerly LuND*
Me: 35 | DH: 37
TTC: 7/2016
Low AMH, mild MFI
BFP 7/29/17
EDD: 4/5/18
BFP #2 7/2/19
EDD 3/13/20
We probably need more information to diagnose this properly. Through the internet.