Responses
I highly doubt it, those look just like blue veins.
Glands and pheromones don't work like that, they have nothing to do with blood(on animals or humans, even if this is a fiction setting thing don't usually go tooo out of the way in omegaverse), I don't think that the blue veins would be the choice for the author to portrait them (gland and pheromones stuff)
nah he needs to get carried on a stretcher blue cs wtf is he doing to have neon blue viens