This study recommends improving patients’ knowledge about diabetes management in several ways as continuous audio and video display when the patients are waiting in the clinics, a flyer with illustrations could be given to the patient that contains information on different types of insulin with their color code, sites of insulin administration, techniques of insulin administration, storage of insulin, signs of hypoglycemia and hyperglycemia, complications of insulin and its management [41]. This evidence concerns the gene INS and diabetes mellitus.