Proctitis is defined as a condition of inflammation of the anus and the lining of the rectum (i.e., the distal 10–12 cm) of that can lead to bowl discomfort, bleeding, a discharge of mucus or pus, etc. A. Misdiagnosis 1. Hirschsprung’s disease Allergic proctitis and abdominal distention mimicking Hirschsprung’s disease in infants.In the study to …