This is Aimee Rouski, a 19-year-old from Liverpool, England, who has Crohn's disease, a chronic inflammatory disease that affects the digestive system.
Rouski recently posted a few selfies with her ostomy bag and surgical scars to Facebook, and the post is going viral.
"I've wanted to do this for a while because I always see body posi posts for weight, but not many for disabilities/invisible illnesses," she writes.
"I've always been okay with the stuff that has happened to me, but some people have real difficulties accepting these things so I just want to say this. No one will know unless you tell them. People who know will still love you and still find you beautiful. Your illness is nothing to be ashamed or embarrassed about."
Rouski told BuzzFeed Health she was diagnosed with Crohn's in 2008, and since then she's had several surgeries, including ones to remove her large intestine, colon, rectum, and anus.
"You don't always know what's going on in people's lives, so don't be so quick to judge, and always keep an open mind," Rouski said.
And although the feedback to her post has been positive, Rouski says many people who wear ostomy bags struggle to feel confident and accept their bodies.
Rouski hopes she can help others struggling to gain confidence and realize they have nothing to be ashamed about.
For more information on Crohn's disease and similar conditions, check out the Crohn's and Colitis Foundation of America.