Insulin turned pink!

[Westley]

This is a first for me!
I was changing the needle when I noticed the remaining insulin in the cartridge was a funny colour.
I'm guessing some blood got sucked back in. I have been using my front quads and calves more than usual (I used to always use my stomach and needed to give it a break), where I don't have a lot of fat.
I'm also on small but frequent doses, so a cartridge lasts me many injections. I use a humapen luxura. I change the needle usually every 2-3 injections.
It was working fine, but I changed this cartridge just to be safe.

Has anyone else experienced this? Anything to worry about?
I wondered if it's related to my injection technique or the pen(which I've carried around a lot). There is a little bit of 'give' when it reaches 0, so I can imagine if I'm releasing the pressure on the button end before withdrawing the needle it could be pulling a bit back in.

 

[Deleted member 527103]

A couple of thoughts
- you mention releasing pressure on the button before withdrawing the needle. This should not be an issue but I wonder whether you hold the needle in place for a count of 10 before pulling it out. This ensures all insulin is given.
- needles are designed for single use and should be replaces after every use not every 2 - 3 injections. You will be blunting the needle by reusing it.

 

[Antje77]

Hasn't happened to me, but I've read from others it happened that some blood went into the pen.
I did a quick google search on it ("blood in insulin pen") and some results came up, mainly warnings to not share an insulin pen with others because some blood can have entered the penfill.