Trypophobia is a proposed phobia of irregular patterns or clusters of 3-inch diameter holes or bumps.
 Specific phobias are defined concerning objects or situations, whereas social phobias emphasize social fear and the evaluations that might accompany them
 In one study, most of the participants with trypophobia met the DSM-5 criteria for a specific phobia, even though they experienced disgust instead of fear when shown imagery of clusters of holes; however, they did not meet the distress or impairment criterion

