ABSTRACT Breast cancer is the most common malignant tumor in women, with more than a million new cases annually. One of the most frequent surgical and post-actinic sequelae and well known is postmastectomy lymphedema. The axillary web syndrome is another sequel that limits the functionality of the patient and delays the protocol times of application of treatments cancer, and in many cases this sequela is misdiagnosed. This surgical sequelusually disappears spontaneously after the third month of appearance, but this implies a long period of discomfort and limitations for the user, at the same time that it may delay the application of Radiotherapy within the indicated protocol deadlines (due to the need for a body posture with abduction and flexion of the affected upper limb for its application and with the lymphatic thrombus is impossible to get). With the present quasi-experimental study, the investigator intend to show that the application of Kinesitherapy and stretching from the beginning of the appearance of the cord, in a controlled and scheduled way by the physiotherapist, it is possible to reduce the time in which the lymphatic thrombus is present, and therefore, recover functionality, mobility, reduce pain and be able to apply the patients´ treatments within of the established deadlines. The investigator intend to apply this therapy in the intervention group and compare thrombus evolution times with the control group.