is the condition of difficult defecation
Difficult Defecation and Blood in Stool in Dogs. Dyschezia and Hematochezia in Dogs. Dyschezia and Hematochezia are diseases of the digestive and intestinal system; both are visible presentations of an underlying disease that causes inflammation or irritation of the rectum or anus. Dyschezia is a condition in which defecation is extremely difficult or painful, and hematochezia is symptomized by bright red blood in the stool. Hematochezia can also be concurrent with diseases of the colon.