little tiny red dots in my syringe

hey guys so i witnessed the weirdest shit, I aspirated before injecting and only saw bubbles and so i injected. After finishing injection i looked at my syringe and saw 5-6 little tiny red dots. I'm wondering what it is ?



i injected test prop.

used 25 g needle to inject

injected in glutes

little tiny red dots in my syringe