RÉSUMÉ
Hysteroscopy is the gold-standard procedure for evaluating the vagina, cervix, cervical canal and uterine cavity, with a great possibility of identifying lesions and being able to treat them at the same time in a 'See and Treat' procedure. The presence of the operative channel allows directed biopsy and excision of part of the lesions. Hysteroscopic treatment can be offered in office and hospital settings. The main difference is the use of anesthesia for hospital hysteroscopy. Office hysteroscopy has as major challenge the patient's pain threshold and the size of the lesion base. The use of the appropriate technique allows the removal of lesions even in an outpatient setting. Hospital hysteroscopy allows the use of instruments with a larger diameter and with the use of associated energy. The development of new technologies has increased the spectrum of office hysteroscopy.