Adequacy of diabetic management in 5 Perak outpatient departments was studied in April 1996. Two hundred diabetic patients' records were analysed. All doctors and 100 patients answered questionnaires on diabetes. Fifty five percent of doctors had adequate knowledge. Patients' knowledge varied between centres (13% to 80% adequacy). Most records had insufficient data to determine adequacy of early detection. Centres with screeners had adequate weight and blood pressure measurement. Overall control and monitoring of diabetes were inadequate. Referral of complications were delayed in 2 centres. Refresher courses for doctors, patient health education, protocols, screeners and physician visits are recommended.