coprophobia coprophobia coprophobia is fear of or aversion to feces or defecation. coprophobiaspecialtypsychology in humans, the attitude to feces and defecation has become a cultural taboo. in the animal world, many herbivorous grazing animals including cows, sheep, horses, and reindeer avoid feces when feeding. primates also prefer to forage away from feces-contaminated areas. the aversion is believed to be a strategy to avoid infection.