Abstract Objective: This study was conducted to determine the knowledge levels of DM patients about the disease and insulin use, and their practices to avoid insulin injection pain.

Methods: Data were collected from 399 patients who administered insulin injections in the study. Patient identification form, disease and treatment compliance form, Morisky-8 Treatment Adherence Scale (MMAS-8), and Visual Analog Scale were used for data collection. The data were collected by the same researcher by face-to-face interview technique.

The face-to-face interview technique was applied to all patients who met the inclusion criteria and accepted to participate in the study, in the waiting area of the internal medicine outpatient clinic. Data were collected by the same researcher. Questionnaire forms were filled in the form of questions and answers in 10-15 minutes.

Inclusion Criteria:

• Patients between the ages of 18-65, diagnosed with diabetes mellitus at least 1 year ago, injecting themselves with insulin.

Exclusion Criteria:

• Having no communication problems, and having no mental illness were included in the study.

Individuals with diabetes between the ages of 18-65