OBJECTIVE: To describe the experience of family care to women with breast cancer during treatment from the perspective of caregivers in the Mexican context. METHOD: Qualitative phenomenological study. In-depth interviews were conducted with caregivers of women who survived breast cancer. Participants were selected by intentional, cumulative and sequential sampling. A conventional content analysis was performed. RESULTS: Participation of seven caregivers, who reported their positive and negative experiences when assuming their role as informal caregivers in the family context.