Lymphatic drainage is an important part of lympdoedema treatment it39s a form of massage that helps stimulate the lymphatic system and encourages the flow of lymph fluid the lymphatic system is a major route of cancer spread as cancer cells from a primary tumour can either become trapped in lymph nodes or small lymph vessels or can spread against the normal flow of lymph as it becomes stagnant or retrograde leading to secondary tumours improving the lymphatic circulation is key to hel