Objective: De Quervain’s disease is a stenosing tenosynovitis of the first dorsal compartment. Treatment options include conservative measures, injections, and surgery. The main purpose of this study is to eliminate uncertainty in the choice of treatment and to recommend the appropriate treatment to the patient based on Michigan hand questionnaire. Material and Methods: The age, sex, and treatment modality of the patients were recorded retrospectively. Patients’ Michigan outcomes were assessed, and patients were divided into three groups: Patients who benefited from conservative treatments (Group 1), from injections (Group 2), and from surgery (Group 3). Statistical analysis of the data was performed. Results: The mean age of the 56 patients (54 women, 2 men) was 35.1±11.4 years. There was a difference between all groups in total hand function and pain scores (p < 0.05). Patients in group 1 were significantly different from the other groups (p < 0.05), and there was no significant difference between group 2 and group 3 (p > 0.05). Conclusion: Various methods have been described for De Quervain’s tenosynovitis’s treatment. Choosing the right therapeutic steps for the right patients is important. It is possible to select treatment options by assessing overall hand function and activities of daily living with the Michigan Hand Outcome Questionnaire.