Abstract Introduction Pelvic radiotherapy is a treatment for gynecological and anorectal cancer, with side effects including vaginal fibrosis, dryness, adhesions and strictures. Rehabilitation aids may prevent or minimize post-radiotherapy vaginal changes and subsequent decline in sexual functioning, which could reduce distress. Objective To present the effects of dilator therapy on vaginal changes in women with pelvic cancer undergoing radiotherapy treatment. Methods This is an integrative review of the literature and surveys were carried out in the electronic databases PubMed and PEDro. The search terms used were: “Vaginal Dilator”, “Pelvic Neoplasm”, “Brachytherapy” and “Radiotherapy”. Only randomized clinical trials and observational studies were considered. Data collection was carried out between March and May 2022. Results 21 studies were found, seven of which met the established criteria and agreed with the proposed objective. Subsequently, a manual search was carried out, where two more studies were found. Finally, this review was composed of nine studies. It was observed that the vaginal dilator after radiotherapy is beneficial, reducing the frequency and severity of vaginal stenosis, thus improving the quality of sexual life of women. However, it is important to highlight that psychosocial education programs are also important and cause positive effects in this population. Strategies related to promoting treatment adherence remain necessary due to taboos related to the use of dilators. Conclusion Dilator therapy is effective in reducing vaginal stenosis and improving the quality of sexual life of women undergoing radiotherapy for pelvic cancer. Financing No conflict.