This trial is conducted in Europe. The aim of this trial is to compare two needle types when used with a disposable insulin injection pen in the everyday life setting of an insulin treated patient with diabetes.

Inclusion Criteria:

• Signed and dated informed consent obtained before any trial-related activities
• Diagnosed type 1 or type 2 diabetes
• Treated with insulin

Exclusion Criteria:

• Previous participation in this trial
• Mental incapacity, unwillingness or language barriers precluding adequate understanding or co-operation
• Any disease or condition which the investigator feels would interfere with the trial