Learn what different shades of blood mean and how they signal changes in your health or potential medical issues.

Rarely, it can suggest an injury or appear as a sign of being in labor. Darker Colors of Red, Brown, Black Older period blood can appear black, brown, or darker red. These colors suggest a slower ...

The color is typically a sign of old blood or blood that has taken longer to leave the uterus and has had time to oxidize, first turning brown or dark red and then eventually becoming black.