Diabetes mellitus is a frequent chronic and metabolic disease. In today’s world, one in every two person (212 million) can not be diagnosed with diabetes and one in every eleven person has diabetes. Quick shifts in lifestyle results in increasing prevalence of diabetes and mismanagement of diabetes results in damaging organs and increasing complications. Guidelines for chronic complications of diabetes include treatment and care recommendations. According to the guidelines for the treatment and management of complications; appropriate glycemia, blood pressure and serum lipid control should be maintained in people with diabetes. To prevent diabetic retinopathy, a comprehensive eye examination should be performed once a year. Urine albumin/creatinine and estimated glomerular filtration rate should be measured for screening for chronic kidney disease in individuals with diabetes. The microalbuminuria measurement, which has an important role in the early diagnosis of diabetic nephropathy, should inform the individual and his/her family regularly. Individuals should be extensively evaluated and treated to reduce pain and improve quality of life due to diabetic neuropathy. Blood pressure target should be <130/80 mmHg in diabetic individuals with hypertension and individuals should monitor blood pressure at home. For the prevention of cardiovascular complications; smoking cessation, healthy eating, regular physical activity and medical treatment should be maintained. Accordingly, following the evidencebased current approaches about nursing care and treatments by health professionals is highly important for increasing adaptation of the patients to treatment and preventing complications. In this study, examining the diabetes related complications, pathophysiology, diagnosis and stages of complications and the current treatments and nursing approaches used in the management of complications is aimed.