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.

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 ...

His single large eye in the middle of ... Doppelgängers with holes in their faces are more unsettling and may be upsetting for people with trypophobia. There are multiple doppelgängers with ...

This is not a clinically recognised phobia, but this fear of holes can be very unsettling for someone who experiences it. Trypophobia refers to an intense, irrational fear or aversion to clusters ...