▁mis inter pre ted ▁as ▁such , ▁given ▁the ▁an atom ical ▁proxim ity . ▁ ▁F ist ula e ▁dra ining ▁into ▁the ▁per ian al ▁region , ▁as ▁well ▁as ▁p ilon idal ▁dise ases , ▁are ▁the ▁main ▁entities ▁that ▁fall ▁within ▁this ▁category . ▁Per ian al ▁tum ours ▁can ▁also ▁dis charge ▁when ▁they ▁fung ate , ▁or ▁otherwise ▁become ▁c yst ic ▁or ▁ne c rot ic . ▁ ▁C aus es ▁ ▁Pro ct itis ▁ ▁Pro ct itis ▁is ▁infl amm ation ▁of ▁the ▁l ining ▁of ▁the ▁rect um ▁including ▁the ▁dist al ▁ ▁of ▁the ▁rect um . ▁ ▁Pro ct itis ▁has ▁many ▁causes . ▁Common ▁in fection ▁causes ▁include : ▁sexual ▁inter course ▁with ▁someone ▁who ▁has ▁a ▁sex ually ▁transm itted ▁disease ▁( ST D ), ▁in fection ▁from ▁a ▁food bor ne ▁ill ness , ▁and ▁st rep ▁thro at ▁( in ▁children ). ▁ ▁Pro ct itis ▁may ▁also ▁be ▁caused ▁by ▁some ▁types ▁of ▁infl am mat ory ▁bow el ▁disease , ▁radiation ▁ther apy , ▁injury ▁to ▁the ▁rect um ▁or ▁an us , ▁or ▁some ▁types ▁of ▁ant ib i otic . ▁▁ ▁T uber cul osis ▁pro ct itis ▁can ▁create ▁a ▁m uc ous ▁dis charge . ▁ ▁In fe ctions ▁ ▁Anal ▁w arts ▁( cond yl oma ▁ac umin atum , ▁an ogen ital ▁w arts ) ▁ ▁Anal ▁w arts ▁are ▁irregular , ▁ver ru c ous ▁les ions ▁caused