Question

Why menstrual blood does not clot?

Answer 1

There are some differences between normal and menstrual blood. The major one is the presence of anticoagulants in the menstrual blood.

The body produces and releases anticoagulants during menstruation to stop the blood from clotting. However if the rate of flow is above the normal limits, then there is a chance that the anticoagulants may not have enough time to work properly and there may be bright red or dark blood clots.