<unk> us tract open: Persistent, painless, blood-stained, mucous, malodorous discharge<unk> us tract blocked: Bouts of inflammation that are relieved by spontaneous rupture
Abscess
Throbbing pain that is constant and worse with sitting, moving, defecation
May be only sign of<unk> <unk> us opening
Adjacent to<unk>  margin suggests superficial connection (e.g. intersphincteric region)
Distant from<unk>  margin suggests deeper, more superior abscess
Throbbing pain that is constant and worse with sitting, moving, defecation
May be only sign of<unk> 
Adjacent to<unk>  margin suggests superficial connection (e.g. intersphincteric region)
Distant from<unk>  margin suggests deeper, more superior abscess
Anal fistula
Anal fissure
Anorectal abscess
Anal malignancy
Rectal prolapse
Anal tags
External hemorrhoid
Internal hemorrhoid