Coprophobia

Coprophobia is a fear of, or aversion to, feces or defecation. In humans the attitude toward feces and defecation has become a cultural taboo, so the aversion is widely shared, and the term names the stronger form of that reaction. The same avoidance appears across the animal world: many herbivorous grazing animals, including cows, sheep, horses and reindeer, avoid feces while feeding, and primates also prefer to forage away from areas contaminated by feces. This aversion is believed to be an evolved strategy for avoiding infection, which helps explain why disgust toward excrement is so common and so easily triggered. The source lead describes the condition and its natural background but does not give diagnostic criteria, prevalence or treatment, so those remain to be recorded from further sources.