Inclusion Criteria:  Patient over 18 years old. Mastectomized patients (either radical or conservative surgery). Patient with lymphatic thrombus in the upper limb ipsilateral to the surgical intervention.  Exclusion Criteria:  Significant psychological alterations that would prevent the retrieval of the information necessary for the investigation. Significant neurological alterations that would prevent the retrieval of the information necessary for the investigation. Patients in a situation of legal dispute that would affect their intervention in this study. Metastasis not treated with chemotherapy treatment.