To place the pessary, it is pushed vertically into the longitudinal opening of the vulva. The ring may be slightly pressed into a figure of 8, but not forcibly so as to break the spring which is in its walls. The part first introduced ought to be directed backwards; the last inserted part should disappear behind the os pubis which is felt in front. By hooking the finger behind this bone, the pessary may be pushed up as far as it will go.
It is necessary to choose the pessary with care. The essential conditions are: (1) that there should be no space between the pessary and the os pubis, nor that any should remain when it is pushed as far as possible backwards. (A very small space may perhaps be left, on condition that the husband take care not to enlarge it during connection.) (2) We should feel the inferior tip of the womb covered by the membrane of the pessary when the finger is introduced as far as possible. As a rule, we should try the largest number that can enter, and then higher numbers, until the pessary is found which satisfies these conditions.
If the membrane of the pessary does not cover the mouth of the womb, the pessary must be introduced not in the direction of the abdomen, but backwards towards the anus (bottom); this method of operating may fail if the woman is stooping; it will succeed better if she is lying down.
When a pessary is found which realises the conditions above described, care must be taken that the instrument remains in its place when the woman is standing up with the thighs apart, and making at the same time pressure of the abdomen. If in such conditions the pessary descends so that a space is left between the pessary and the os pubis, a larger number must be tried. If no number of the Mensinga pessary fits, recourse must be had to the _pessary Matrisalus_ (price 75 cents), which is more difficult of application, for with this instrument care must be taken that the convex side is placed above, and the curved part in front, in correspondence with the curved part of the os pubis. This pessary has the great advantage that it does not descend so easily. Besides, this pessary is treated like the others.
If this pessary does not suit either, the husband must make use of the French Letter, and if he objects, the wife might use the _tubular pessary_ (price 25 cents), which, not serving as an obturator of the vagina, covers the end of the womb like a cap. The wife at first introduces her finger to find out the tip of the womb, she then slides the tubular pessary up until it adheres like a sucker to its tip. The higher part of the pessary should enter first, and the instrument should be placed so that during connection the husband should scarcely touch the bottom of the pessary. After the first connection, the wife should see that the pessary remained in its place.
