The mnemonic HIS FRIENDS can be used to memorize characteristics which impede the closure of<unk> . H: high output I: IBD S:short tract *F Foreign body *R Radiation *I Infection or Inflammatory bowel disease *E Epithelialization *N Neoplasm *D Distal obstruction *S Short tract (<2 cm)
Enterocutaneous fistula
Pancreatic fistula
Vesicointestinal fistula
Collaural fistula
Anal fistula
Cimino fistula
Gastrojejunocolic fistula
Perianal hematoma