Why do veins look blue-green from the outside but when you extract blood from the same vein it is red? - Quora
![I am 13 and obese, and I have these blue veins on my right breast and right arm, I've had these for as long as I can remember (Like maybe a year I am 13 and obese, and I have these blue veins on my right breast and right arm, I've had these for as long as I can remember (Like maybe a year](https://i.imgur.com/KMs869q.jpg)
I am 13 and obese, and I have these blue veins on my right breast and right arm, I've had these for as long as I can remember (Like maybe a year
![It's all in your veins! Blue veins: you have cool undertones Green veins: you have warm undertones Blue … | Foundation colors, Skin undertones, Colors for skin tone It's all in your veins! Blue veins: you have cool undertones Green veins: you have warm undertones Blue … | Foundation colors, Skin undertones, Colors for skin tone](https://i.pinimg.com/originals/5c/58/ca/5c58ca7972521836c23cb5fe6d8fa515.jpg)