Zoom in on the image. No hole exists. No bent floor panels. It's just the way the fluid has been moved; the greater concentrations are darker by default. The floor remains undamaged.
It's just a part on the floor where something messy took place, that's all. Going by it also being on the examination table, my guess is that something happened to someone there, who then tried to stand up until they exploded/whatever. Imagine if Shaw hadn't managed to extract her squidlet in time and tried to get out of the medical pod as it birthed. Basically that.