Definition for Trypophobia
From Biology Forums Dictionary
lthough it's not an officially recognized fear, there's a movement trying to get it officially recognized and people are petitioning for more research.
The 'official' definition for it is that trypophobia is the fear of asymetrical holes occurring either naturally or unnaturally. Some say that the fear comes from the fact that holes in your skin were a sign of disease, and therefore we are programmed to feel icky about those things.