A retrospective analysis of 187 case records was made for elucidation of the frequency of development of complications in sorption-applicational treatment of festering wounds. It was revealed that late after strewing sterile sorbent into the wound in 6.4% of patients the development of fistulas and going out of preparation granules though fistula occurred. It is concluded, that sorbent's granules incapsulate together with living microorganisms adsorbed on their surface. For prevention of this complication the corbent is recommended to be introduced into the wound in small porous containers, which provide quick replacement of the preparation during wound dressing and its complete elimination in the end of healing.