That light bulb must be made of pretty sturdy glass (or the portion that did collapse was towards the wider end). Though, admittedly, I don't know much about the typical material strengths of light bulbs.
Keep in mind that I'm only saying this because the part of the bulb outside looks relatively intact and not distorted in a way that would suggest that it broke inside, which was likely not the intent in this picture.

Iruel said:

That light bulb must be made of pretty sturdy glass (or the portion that did collapse was towards the wider end). Though, admittedly, I don't know much about the typical material strengths of light bulbs.
Keep in mind that I'm only saying this because the part of the bulb outside looks relatively intact and not distorted in a way that would suggest that it broke inside, which was likely not the intent in this picture.

Depends on the light bulb honestly. I think that the fluorescent ones (Clouded ones. I think that's what they're called) tend to have sturdier or thicker glass, and since the bulb is opaque, we can assume that it is. So it's probably not broken

As long as you don't apply sudden pressure that creates a shockwave, lightbulbs are surprisingly strong. It's the same as an egg holding up a cinderblock.

The blood here is apparently from the hymen; if the bulb had broken it'd be collapsed even if somehow the "tip" had broken off as the rest would crumble under the surrounding pressure.