Sexuality is a complex concept involving biological, psychological, interpersonal and behavioural aspects. The negative effects of gynecologic cancers, which are quite common in our country, on women's health are multi-dimensional. The negative impacts of gynecologic cancer symptoms and treatment on the woman's sexual health also affect the quality of her life. Brachytherapy, used in the treatment of cervical cancer, which is most common of gynecologic cancers, causes problems such as vaginal stenosis, dyspareunia, reduced sexual desire and difficulty in achieving orgasm. The patients, who undergo brachytherapy usually cannot get effective counselling on their sexual problems. This is an issue, which is neglected by health professionals and women are obliged to learn to cope with sexual dysfunction after brachytherapy by themselves. In this challenging period, nurses should use the models in assessing the women's sexual lives, especially in sexual counselling and guidance.