Tips and Tricks

Avoiding problems

ProblemPossible causesRecommendation
Painful injection Multiple use of pen needles Change the pen needle after each injection
Insulin flows back from injection channel Pen needle removed too fast (incomplete insulin delivery) Inject slowly and do not remove the pen needle immediately (count slowly to 10)
Injection too fast, insulin was unable to distribute
Lacking or too pronounced efficacy of insulin Unsuitable injection site: tissue hardening (lipohypertrophie), scar tissue, hardening of skin Avoid unsuitable sites
Pen needle removed too fast after injection Inject slowly and do not remove the pen needle immediately (count slowly to 10)
Poor mixing of insulin in cartridge (only in case of cloudy insulins) Roll and swivel the pen 10 times before each injection, according to the instructions of your healthcare professional and the instructions of the insulin manufacturer.
Pen needle is clogged Use a new pen needle and use every pen needle only once
The dosage button of the pen cannot be pressed Rubber membrane of the cartridge was not pierced Use a new pen needle. Change the pen needle after every injection
Pen needle too loose Ensure that the pen needle is securely fixed
Pen needle is clogged Use a new pen needle and use every pen needle only once