The napkins should be changed at least every morning and evening. Unclean napkins may lead to infection, and it is probable that many cases of leucorrhea have their origin in lack of cleanliness concerning the napkins, cloths, or rags, used during menstruation. It may seem almost incredible to the average woman reader, but physicians know of cases (usually among the poorer and more ignorant foreign classes) in which the girl is instructed by her mother, grandmother, or aunts, that she must wear the original cloth or rag during the entire period, as she will "catch cold" by a change to a clean, fresh cloth while the flow continued. Imagine the result of such a practice! This last is an extreme instance, of course, but it will serve to show the absurd and harmful notions prevalent concerning this important natural function, and its incidents. LEUCORRHEA. A very common disorder among women is that known as Leucorrhea, or "the whites." It consists of a discharge from the Vagina, or the Uterus through the Vagina. It is, in fact, of a catarrhal nature, and results from an over-secretion of the mucus fluids which, in proper quantity, keep the mucus membrane of the said organs in good condition. The discharge manifests in various shades and degrees of consistency. From the character of the discharge, physicians are able to determine whether it comes from the Vagina or the Uterus. The discharge from the Vagina usually is a light creamy fluid; that from the neck of the Uterus is a sticky, thick fluid flowing rather freely; that from the lining of the Uterus is alkaline, and generally precedes and follows menstruation; and that accompanying ulceration of the womb is semi-purulent and offensive in odor. Leucorrhea has many causes, among which may be mentioned the following: getting chilled feet or body, particularly during the menstrual period; over exertion and overwork standing on one's feet; chills following dancing in overheated rooms; excessive worry or emotional strain, etc. It is a quite common complaint, and some assert that fully twenty-five per cent (perhaps more) of all women suffer from it to at least some extent. The general treatment of Leucorrhea consists of the building up of the entire system by the proper hygienic methods. Constipation should be removed, and the system is built up by the proper articles of food, exercise, etc. The use of the proper douches are also advised by the best practitioners. Physicians also treat inflamed areas by local treatments consisting of painting the Vagina or neck of the Uterus with certain medicinal solutions. Certain suppositories and douches are also employed in some cases. It is always better to consult a good physician in these cases, particularly where the trouble is aggravated or of long standing.