Does my bum look big in this?

I had a hospital appointment today, and was asked to change into a gown.
Half way through the treatment, the practioner came in very apologetic, and said that they needed the room for something else, and I would need to be moved. So I had to grab my things and walk down the corridor. Those hospital gowns are open at the back, and I had to giggle, wondering "does my bum look big in this?" LOL.