We must always remember that the woman's share in bringing forth children and perpetuating the race is much more important than the man's. When a man has discharged his spermatozoa his work is done--the woman's only commences. The conditions which cause sterility in women are many, but the most common cause is a salpingitis or an inflammation of the Fallopian tubes, which may be caused by gonorrhea or any other inflammation. A severe leucorrhea may also be the cause of sterility, because the leucorrheal discharge may be fatal to the spermatozoa. Another cause is a severe bending or turning of the uterus either forwards or backwards. The opening of the neck of the womb, the os, may also be closed, or practically so, from ulceration, from strong applications, etc. In some cases sterility may be due to severe constitutional disease, when the person is very much run down and so anemic that menstruation stops. Unfortunately this is not always the case, for women even in the last stages of consumption may, and often do, become pregnant. Syphilis unfortunately does not cause sterility; it only causes miscarriages until controlled by treatment. The treatment of sterility can be successfully carried out only by a competent physician, particularly by one who is devoting himself specially to this kind of work. But I want once more to impress upon every woman who is sterile, and who wants to have a child, not to have herself treated or even examined until her husband has been subjected to an examination. CHAPTER FORTY THE HYMEN Difference Between Chastity and Virginity--Worship of Intact Hymen--Sacrificing Hymen Sometimes Essential for Health of the Girl--Certificate from Physician who has Ruptured Hymen. I have mentioned in a previous chapter that the absence of the hymen was no proof of unchastity, just as the presence of the hymen was no proof of perfect chastity. Chastity and virginity are not synonymous, and a girl may possess physical virginity, that is, an intact hymen, and still be morally unchaste. She may be in the habit of indulging in unnatural sexual practices. But the laity does not know these facts or does not want to know them, and the intact hymen is still worshipped like a fetish. This would be of little consequence, if it did not often result in unnecessary suffering to the female child or girl. Much disease and a good deal of sterility result from the fear of tampering with the hymen.