Objectives: To describe the changes in the sexuality of the sexual partners since the beginning of the disease and the treatment of breast cancer by spouses.
Methodology: It was a qualitative approach, analysis of content, in which was involved by 41 sexual partners of women with breast cancer.
Results: The experience in sexual partners with respect to the changes of the sexuality of the sexual partners since the beginning of the disease and during the treatment of breast cancer in their partners allowed the construction of three categories: 1) causes and consequences of the alterations on sexuality and marital relations after the breast cancer by the spouse focused on feelings of fear, guilt and loss as a result of the suffering of women; 2) strategies for overcoming the disease and its effects "My wife is in the hands of God and what he decides is well, for my part I have always loved her and I always will". 3) Demands and support offered for women match with the perception that they have themselves about the support of their sexual partners: "I think I feel better now than before, we understand better and I can provide her my full support and confidence, as my love".
Conclusions: The sexual partners of women with breast cancer report changes in their sexuality as a result of the disease and treatments that generate positive or negative changes in their relationship with their spouse, so nursing must include actions of care that are aimed toward the physical, emotional and social welfare of them.