Injection technique is an extremely important part of diabetes management. There are a few key issues that you need to pay attention to in order to ensure that medication delivery is efficient and effective.

1.  Please change your needles regularly! Most people should be changing their needles every 3-5 injections. For some that may be about once a week, for others it may mean every day. Also, ensure that you use the smallest effective needle to prevent skin and subcutaneous tissue damage. Usually the 4mm (green) or 5mm (purple) needles are perfectly adequate.
2.  Never inject through clothes as you will immediately blunt the needle and cause damage to your skin and underlying tissues.
3. Inject slowly and steadily and hold the pen against your skin for 5-10 seconds after injecting to ensure the last few drops of insulin are all delivered. Gently pull the needle out replace its protective cap.
4. Rotation of sites is also very important to ensure that you do not get lipodystrophy at the site.

Usually, the abdomen is the best place to inject insulin but other sites can also be used. Please consult your diabetologist and discuss other options.