Lymphedema therapy has gradually gained a foothold in the United States as a means to manage edema in clients with a variety of diagnoses. Initially, lymphedema therapy was associated with the treatment of edema for client's status post breast cancer, as lymph node removal often accompanied breast surgery. Recognition of lymphedema therapy interventions has expanded to include the treatment of edema associated with orthopedic surgeries and as a means to address the prevention of secondary complications caused by immobility and venous stasis. Wound care clinics are incorporating lymphedema therapy to assist with edema management of chronic wounds, venous and diabetic ulcers. Nursing, occupational and physical therapy professionals and other health care professionals may pursue lymphedema certification. Certification provides the opportunity for health care providers to intercede and to assist in preventing secondary complications for those clients presenting with lymphedema. This manual serves as an introduction to lymphedema therapy and outlines the basic manual techniques to assist in managing edema. This manual does not provide lymphedema therapy certification or specific information on compression wrapping and garments.