So like five days ago a small ball appeared near my anus and

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So like five days ago a small ball appeared near my anus and it hurts a LOT especially when wiping, although any sort of movement that moves my butt hurts as well. What is this? Is it hemorrhoids or some shit like that? It's a very small and soft ball between my manballs and the pooper. I mean, not exactly "very small", it'd be like 1/4 of a table tennis ball or something like that. Or the size of an iPhone "home" button.

I've had this before, it usually disappears after two days and doesn't hurt at all, this time it hurts a lot and has been four days so far.