INTRODUCTION: Breast cancer is one of the pathologies affecting women worldwide, with a high mortality rate of 14,206 per 100,000 women per year. However, Pilates was used as a therapeutic treatment for women who underwent a modified radical mastectomy, being associated with the alterations when in the postoperative sequels.

OBJECTIVE: to evaluate the Pilates Method in the functionality of women submitted to modified radical mastectomy.

METHOD: This is a quantitative clinical trial, in the form of women included in the project, to undergo a physical therapy rehabilitation program through the Pilates Method for 2 months, where they were evaluated before and after the procedure for measurement and comparison obtained.

CONCLUSION: In this way, the pilates method is presented as an instrument used for the rehabilitation of mastectomized women.

Inclusion Criteria:

• Female subjects, between 30 and 65 years, with a diagnosis of breast cancer, who underwent radical-mastectomy surgery and who had after 30 postoperative days

Exclusion Criteria:

• Women who present alterations in healing, severe pain, who have another type of treatment, people who lack more than three times in the research, quitters, people with relapses and who do not tolerate the treatment protocol.

women in post-operative radical-mastectomy treatment.