Blood in the female differs from that in the male, for,
supposing the male and female to be on a par as regards age and
general health, the blood in the female is thicker and blacker than in
the male; and with the female there is a comparative superabundance of
it in the interior. Of all female animals the female in man is the
most richly supplied with blood, and of all female animals the
menstruous discharges are the most copious in woman. The blood of
these discharges under disease turns into flux. Apart from the
menstrual discharges, the female in the human species is less
subject to diseases of the blood than the male.