This report provides a comprehensive overview of diabetes, encompassing its physiological origins, signs, and symptoms of both type 1 and type 2 diabetes. It explores contributory factors leading to the onset of the disease and delves into the processes of referral to specialist services and investigative procedures for diagnosis, including plasma glucose level tests and oral glucose tolerance tests. The report outlines various care services available, the roles and responsibilities of healthcare professionals, and the range of treatment options, including lifestyle adaptations, dietary control, and insulin therapy. Monitoring processes such as regular blood glucose level checks are also discussed, alongside strategies for coping with lifestyle changes and potential long-term outcomes, such as macro-vascular damage and chronic heart diseases. The report concludes with a summary of the key findings and a list of references.