Do women menstruating need to take any precautions?
Yes and no! There are different points of view on this. Some traditions believe it is best not to practice asanas at all during the full cycle of menstruation. Others say it is ok, so long as you refrain from Inversions(headstands, handstands, shoulderstand, plow, etc.) which reverse the flow of blood down and out of the body. I know many women, including myself who swear they are fine practicing as they normally do. Again, it is a matter of your own experimentation and using your intuition to make the appropriate choices. Listen to your body and you’ll know.