A normal period can vary in color and consistency throughout its duration, generally showing a progression of blood appearance.
Here's a breakdown of what you might typically observe during a normal menstrual cycle:
- Color Variations:
- Bright Red: Fresh blood, often seen at the beginning of the period.
- Darker Red: Heavier flow may result in darker blood, sometimes with clots.
- Rusty Brown: Older blood, usually appearing towards the end of the period as it has had time to oxidize. This is due to the air reacting with the blood (reference).
- Pinkish: Indicates a lighter flow.
In summary, the appearance of period blood can fluctuate, reflecting the age and flow rate of the blood being shed.