This module examines the theory (including pathophysiology, aetiology, epidemiology) of Diabetes Mellitus (DM), and relates this to patient care and health education. You will understand that DM is a chronic disease, which unless managed effectively by both health care professionals and the patient, may result in acute (hypo and hyperglycaemia) and long-term complications (heart attack, stroke, blindness, renal failure, limb amputations and sexual dysfunction, depression). The treatment of DM has pharmacological plus lifestyle components i.e. nutrition, physical activity, smoking, alcohol consumption, and stress issues. These inter-link to achieve acceptable blood glucose levels and reduce risk factors of blood pressure, cholesterol, obesity and smoking. This 15 week module will work through the patient journey. Hence, to prepare you to educate and support patients, family and carers with the understanding of complex care needs. This will incorporate pharmacological, lifestyle changes and treatment compliance in order to enhance quality of life and reduce the risk, or delay the onset of complications for patients.