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[Features of the incidence of cystitis depending on the type of contraception].

For the purpose of evaluation the effect of contraceptive methods on the incidence of recurrent bacterial cystitis in women, 215 clinical records of patients with cystitis were analyzed. In addition, incidence of recurrent cystitis in three groups of sexually active women of reproductive age was compared: 26 patients (Group 1) received conventional therapy and used condom as a method of contraception; 31 patients (Group 2) received combined oral contraceptives (COC), and 32 patients (Group 3) received COC and two courses of treatment with canephrone. A negative correlation between COC use and the risk of cystitis was detected. After conventional therapy, recurrences were observed in 43.3% of patients in Group 1, in 25.8% of patients in Group 2, and only in 15.6% of women in Group 3. Thus, the choice of COCs for contraception lead to 2-fold reduction of risk of recurrence of bacterial cystitis, and additional use of canephrone--to 3-fold reduction.