Clinical Research Directory

* Being 18 years of age or older * Having stage 1-3 lymphedema according to the International Society of Lymphology (ISL) classification * Having a diagnosis of unilateral breast cancer-related lymphedema (Doppler, lymphoscintigraphy, and computed tomography were preferred to confirm the diagnosis of lymphedema based on a comprehensive medical assessment and condition of the patient) * No evidence/suspicion of cancer recurrence after completion of adjuvant local and systemic therapies for at least 12 months * Not having received a complex decongestive physiotherapy programme in the last 6 months * Volunteer to participate in the study Able to read and understand Turkish. Exclusion Criteria: * Inability to understand the questionnaires and refusal to participate * History of congenital lymphedema or bilateral upper extremity lymphedema or malignant lymphedema * Presence of neurological or mental illness or axillary web syndrome, major organ failure, or/ iatrogenic disease that may adversely affect the severity of lymphedema (such as using steroids, nonsteroidal anti-inflammatory drugs, and calcium channel blockers) * Presence of conditions contraindicated for complex decongestive physiotherapy (active infection, deep vein thrombosis/thrombophlebitis, cardiac oedema, pulmonary disease, peripheral arterial disease, any skin disease such as scleroderma, allergic reactions to treatment).