The aim of the study was to present the possibilities of application of leeches in cases of disturbances of venal out-flaw in replanted digits.Material and methods. In the period of 28 months 11 male patients aged between 19 and 51 years were subject to treatment with leeches. The group comprised 11 patients who had finger replantation or revascularization performed, and one patient who had second-toe-transfer. The indication for treatment were venal out-flaw disturbances of different etiology and their prophylaxis. Leeches were usually applied every 12 hours (two leech on one finger), the duration of treatment was from 2 to 6 days (4 days on average). After an effective application the animals were utilized. The antibiotics of aminoglicozides group were used as a prophylaxis of Aeromonas hydrophilia's infection.Results. All of the fingers treated with leeches survived. A dramatic improvement of local state of the fingers could be seen soon after the application of leeches. All of the patients did not complain of any discomfort associated with the therapy.Conclusion. The application of leeches in cases of disturbances venal out - flaw in replanted digits seems to be a valuable alternative of other methods commonly used.