The aim of the study was to evaluate factors influencing the long-term effectiveness of the therapy for unconsummated marriages (UCM). From 51 pairs included in the study due to primary UCM 40 pairs successfully finished the therapeutic program while 11 pairs dropped out from the program and were not included in the further analysis. Patients signed up for the therapy after 8.4±4.2y of relationship, and 3.2±2.8y from the sexual initiation in the relationship at the age of 30.2±4.5y for female, and 31.7±4.8y for male. Women’s mean age of sexual initiation was 21.1±3.6y and their partners – 20.8±4.6y. All women were diagnosed with primary vaginismus. The original therapeutic approach consisted of 3 stages procedure: diagnosis of the sexual problem within the couple (anamnesis, medical examination, Mell-Krat Scale, STAI Scale), woman’s behavioural therapy including relaxation and visualization, and couple behavioural therapy with the male partners involved into relaxation, visualization and sexual penetration. The Pearson correlation coefficient was used to assess the relationship between selected factors and the quality of sexual life in 1st and 3rd month after marriage consumption.