<unk>  is "difficulty in evacuation or emptying the rectum which may occur even with frequent visits to the toilet and even with passing soft motions". The conditions that can create the symptom are sometimes grouped together as defecation disorders. The symptom tenesmus is a closely related topic.
Obstructed defecation
Open defecation
Fecal incontinence
Fecal vomiting
Rectal discharge
Rectal douching
Functional constipation
Coital incontinence