And as a practical matter, it doesn't really clarify the pronunciation of Nguyen unless one knows which English pronunciation of ng you're referring to. I'm just teasing with this pedantry, of course; I understood what you meant. But then, I already knew how to pronounce Nguyen.
What are bruises? Bruises are bluish or purple-coloured patches that appear on the skin when tiny blood vessels, called capillaries, break or burst underneath. The blood from the capillaries leaks into the soft tissue under your skin, causing the discolouration.
2. Environmental Environmental allergies are one of the main causes of dark circles around the eyes. The allergies cause congestion that increases the blood flow to the nose. As the skin under the eyes is delicate, it creates a purple tint. It also enlarges the blood vessels around your eyes and creates a dark tint.