Immediate local swelling is pathognomonic for traumatic oedema. Trauma is the most common cause of more localised or regionalised lymphedema. Traumatic lymphedema can occur anywhere in the human body: in the arms, legs, neck, face, chest, oral cavity, and genitals. Rapid improvement in oedema discharge is crucial for healing (restitutio ad integrum). Even in the case of iatrogenic traumatisation caused by surgery, rapid oedematisation is necessary, especially in the particular case of the insertion of a Cimino-shunt, a type of vascular access for haemodialysis. The consequences of overlooking this crucial step are presented in a case study.