Assertion: anal fistula | /r/CreatedBy | infection
Facets:
value: within the anal gland
type: LOCATION
value: near the anus
type: LOCATION
value: usually
type: TEMPORAL
Source sentences:
text: It's usually caused by an infection near the anus resulting in a collection of pus (an abscess).
text: Anal fistulas are caused by infection within the anal gland that spreads itself to the skin.