Despite the epidemiological link between mellitus diabetes and the knowledge of this disease affecting the population at different stages of life, the global phenomenon of gestational diabetes mellitus is still not well known. Systematic data on the global prevalence of diseases, especially in developed countries, are lacking. Hyperglycaemic intrauterine environment as illustrated by pregnancy complications with GDM could not only reflect, but also encourage further development of diabetes mellitus type 2 diabetes. (T2DM). The symptoms of gestational diabetes mellitus are not sufficiently pronounced. Possible symptoms as fatigue, thirst, the appearance of fungi and the like. Any suspicion of a gestapo pregnancy requires a patient's involvement in additional blood tests. The diagnosis of the disease involves tracking and rinsing patients, while for treatment there are three variants of a child, exercise (daily 30-minute exercise) and insulin. The most common risk factors in the mellitus gestational diabetes are the thickness, older age of pregnant women, the history of the disease, the family history of diabetes, the membership of the ethnic group with high prevalence of T2DM, polycystic ovarian syndrome and persistent glucoziri. As part of the work, a survey was carried out whose sample consists of adult pregnant women during the 24th week of pregnancy and thereafter. The goal of research is to get insight into how many pregnant women have diabetes, while specific work targets refer to age, hypertension, and increased body mass with the onset of gestational diabetes mellitus. Research has shown that comparatively young pregnant women with a high percentage do not suffer from the gestational diabetes mellitus (GDM) and in which a lower percentage of pregnant women are pressurised. According to this, there is a small number of subjects that have a particular treatment. In addition, the hi square test found obesity in older pregnant women. Pregnant women belonging to another age group suffer from gestational diabetes, while pressure problems have pregnant women from the first and third age groups