This section is from the book "A Manual Of Pathology", by Guthrie McConnell. Also available from Amazon: A Manual Of Pathology.
Proctitis, Or Inflammation Of The Rectum, may be due to the presence of masses of hard feces, of foreign bodies, or to infections, as tuberculosis, syphilis, and gonorrhea. If acute in onset, it however soon becomes chronic.
The mucous membrane is swollen, edematous, and minute hemorrhages are frequent. Ulcerations of varying degrees of severity are present and may give rise to a periproctitis and perirectal abscesses. These may rupture externally and leave a fistulous tract opening both internally and externally; is known as fistula in ano.