The most common cause in the UK is pernicious anaemia, an autoimmune condition preventing B12 absorption
The thigh is also easy to reach, making it a preferred site for those who self-administer shots
Image: Peter Dazeley/Getty Images About the Author Marygrace Taylor, Health Writer About the Reviewer Pieter Cohen, MD, Contributor Disclaimer: As a service to our readers, Harvard Health Publishing provides access to our library of archived content
Skin and subcutaneous adipose layer thickness in adults with diabetes at sites used for insulin injections: implications for needle length recommendations Shorter needles are also less painful, because they penetrate less tissue: The needle lengths that were once recommended for SC injection (for adults, 8 mm
Eli Lilly developed it as a triple receptor agonist
Why You Should Rotate Injection Sites If you receive B12 injections regularly, one of the most important habits to develop is rotating your injection sites