Though it might seem like more, the average woman loses just 4 to 12 teaspoons of menstrual fluid during one period.

The amount of iron lost via menstrual fluid is relatively small for most women.

In general, lochia has an odor similar to that of normal menstrual fluid.

During an average period, a woman normally produces 4 - 12 teaspoons of menstrual fluid.

Endometriosis, which often plays a role in infertility, is thought to be associated with the amount of menstrual fluid that backs up.

If a woman needs to note how much menstrual fluid she is expelling for medical reasons, a cup can allow her to tell more accurately.

During this time, the water in the main shrine runs red with iron oxide resembling menstrual fluid.

The hymen usually does not cover the entire vaginal opening, since there must be some way for the menstrual fluid, or period, to leave the body.