Fistula's, abscess's, seton's

I am trying to understand this stuff as I possibly have one.  there is some good info here at these links if any one is interested in some reading.....

http://www.crohnsforum.com/showthread.php?t=20887

http://www.fascrs.org/physicians/edu...stula_abscess/

http://www.fascrs.org/physicians/edu...s/2011/Crohns/

http://www.nacc.org.uk/downloads/factsheets/Fistula.pdf