The number of people suffering from the chronic disease Diabetes Mellitus Type-2 has increased significantly in recent years. Also in the future, the numbers of new cases will increase. Diagnosing Diabetes Mellitus Type-2 begins a daily battle for patients, which they must carry on until the end of their lives. Particularly older people affected, the change is often difficult. In order to ensure the best possible treatment in the inpatient area and to avoid complications, the focus is on the professional advice from nurses. In the course of this thesis, well-known counseling concepts are described and presented, whether they are used in inpatient treatment. This will be followed by an introduction to the subject of diabetes mellitus type-2. This specialized knowledge is essential to be able to offer promising nursing advice. Prior to this work, a literature search was conducted from January to May 2018 using search engines and libraries. Mainly articles and occasionally books were used.