This thesis aimed to indicate the importance of exercise in the rehabilitation process after breast cancer. Based on the gathered research, this thesis supports the efficiency of exercise in preventing or reducing the effect of treatment that has a negative impact on women's lives. The introduction describes the treatment and rehabilitation program that the patients undergo like radiation, chemotherapy, hormonal therapy, and operation. A couple of therapies have divergent effects on the patient's body and can lead to symptoms such as lymphedema, gathering fat tissue, shoulder problems, reduced bone density, negative psychological and social effects, etc. Treatments have a great impact on functionality in everyday activity, they differ depending on the stage and type of therapy women undergo. Various studies described in the paper indicate a positive influence of exercise on the mentioned symptoms. Several types of exercises and programs are used in rehabilitation and have different effects in the process. Research confirms the effectiveness of specific exercises for the mobility of the shoulder girdle, and states the positive effect of low intensity aerobic exercises, also recent research shows the positive effect of dynamic exercises that include jumping and resistance exercises with an emphasis on low-intensity and low-volume, taking into account the stage of the client. Some studies included yoga in the program and concluded that yoga has the most positive effects on the psychological and social condition of women, while other exercise programs improve the physical condition more effectively. In conclusion, the guidelines of the kinesitherapy program are listed, in which it is recommended to start physical exercise in the early phase of rehabilitation with light intensity, less load, and a higher number of repetitions, and gradually increase the intensity. Diaphragmatic breathing exercises as well as light aerobic exercises are recommended. In conclusion, each of the women should receive an individualized exercise program, and gradually monitor the effect of each exercise and change it if necessary.