Type one diabetes and type 1 diabetes in adults (LADA) occur as a result of insulin deficiency, and in the unregulated form of the disease lead to the development of chronic complications; diabetic nephropathy and diabetic retinopathy. Glucovariability is a deviation of serum glucose values outside the specified range of 3,9 to 10,0 mmol / l (TIR). Advances in the control of diabetes are made by introducing devices for intermittent glucose monitoring, which represent a reliable picture of glycemia. A retrospective study was conducted on a sample of 46 people who came for two check-ups three months apart at the Vuk Vrhovac University Hospital. All patients had already established diagnosis of type one diabetes or LADA. The results show that intermittent monitoring of glycemia over a period of three months did not show a statistically significant change in glucovariability in both groups of patients. On the other hand, there is a statistically significant difference in time below range of glucose (TBR) in patients with type one diabetes compared to patients with LADA, which corresponds to the fact that in three months of glycemic monitoring there is a reduced possibility of hypoglycaemia in patients with type one diabetes compared to LADA patients. Intermittent monitoring of glycemia does not lead to a statistically significant improvement in the values of parameters associated with the development of complications of diabetes in the observed time. On the other hand, lower glucovariability has been shown to correspond to lower glycated hemoglobin values and vice versa. It is estimated that in patients with type one diabetes and LADA, the glucovariability parameters obtained by intermittent glycemic monitoring may be used in the future to assess the regulation of diabetes together with glycated hemoglobin. Despite the fact that in the three months of intermittent monitoring of glycemia there were no major changes in the regulation of the disease, further observation of patients for a longer period of observation is necessary.