Why does the body turn green after drowning, and the eyes and nose bleed?

Greening is caused by lack of oxygen I don't know if you have noticed that your venous blood vessels are blue, while your arterial blood vessels are red. Oxygen-containing fresh blood is bright red, and oxygen-deficient venous blood is blue and dark. Because people can't breathe after drowning, the oxygen content in the blood is low, and the blood color becomes dark, so the body will be blue;

Bleeding is because the eyes and nasal cavity are rich in capillaries, and the body will bear water pressure in water. When the body is fished out, the pressure in the body will be reduced, which will lead to the rupture of capillaries, so there will be bleeding.