An curved arrow pointing right. For many people the sight of holes can bring on a physical reaction. Trypophobia is believed to have evolutionary origins. Produced by Kevin Reilly. Original ...

For many people the sight of holes can bring on a physical reaction. Trypophobia is believed to have evolutionary origins. Produced by Kevin Reilly. Original reporting by Jennifer Welsh.

I looked over a few feet to where melting water was dripping down from the gutter into a large mound of deep, drifted snow and making pinprick, closely packed, irregularly shaped holes in the snow.

Trypophobia is the fear of clusters of small circular holes or bumps, such as the holes in a sponge. The term has only existed since 2005, when it was coined on an online message board ...