I personally don't consider blood to be anywhere near as disgusting as human excrement; so, the comparison does seem a bit over-the-top to me.
Also, the presence of a foul odor is NOT a normal occurrence during menstruation, and definitely needs to be brought to a healthcare provider's attention.
Also, the presence of a foul odor is NOT a normal occurrence during menstruation, and definitely needs to be brought to a healthcare provider's attention.