Parent-Duchatelet found among 3,517 prostitutes under official observation, 5.6 per cent. under 17 years of age. There were:
| 2 | prostitutes under 10 years of age. |
| 3 | prostitutes under 11 years of age. |
| 3 | prostitutes under 12 years of age. |
| 6 | prostitutes under 13 years of age. |
| 20 | prostitutes under 14 years of age. |
| 51 | prostitutes under 15 years of age. |
| 111 | prostitutes under 16 years of age. |
Martineau’s observations also showed that in nearly all prostitutes the first coitus took place in very early youth. Of 607 prostitutes there were 489 in whom defloration had occurred between the ages of 5 and 20 years. According to Grimmaldi and Gurrieri defloration usually takes place in prostitutes before they attain the age of 10 years.
Sometimes we find increased sexuality in early life as a pathological manifestation—psychopathia sexualis. Thus, Esquirol records the case of a little girl aged four years who undertook improper manipulations in association with little boys. A female prisoner, Lombroso writes, had at the age of six years practiced mutual masturbation with her brother aged seven, and at the age of eight years underwent defloration; another murderess, while still a schoolgirl, had conducted herself after the manner of an experienced prostitute. Laurent reports the case of a girl who from the age of ten was engaged in sexual malpractices with her brothers and sisters, and finally underwent defloration at the age of fifteen.
In many cases premature sexual development is manifested by enlargement of the breasts and growth of the axillary and pubic hair, and yet menstruation fails to appear. Thus, Kussmaul has observed girls who while yet children exhibited all the external characteristics of sexually mature women, but who had not yet begun to menstruate. Ploss has published a photograph showing in a girl five years of age the mons Veneris and the labia majora developed like those of a full-grown young woman, and covered with long thick hair; in this case, however, not only had menstruation not yet begun, but the breasts were still in the infantile condition.
The opposite state to menarche praecox is that in which the first appearance of menstruation is unduly delayed; it may be even till after the age of twenty. Such a postponement of the menarche sometimes occurs in girls who exhibit at this period of life an extraordinarily great general fatty development of the body, or a notably severe chlorotic state of the blood, or in whom during the years of development some sudden and extensive change in the mode of life has occurred, as for instance when the girl’s place of residence has been removed from the country to the town, or when she has had to undertake some completely new kind of physical or mental work. Raciborski attributes the late appearance of menstruation, at the ages of 20, 22, 24, or 26, in otherwise healthy girls, to an “apathy of the sexual sense,” a phrase which does not convey much meaning.
According to Marc d’Espine, puberty occurs early in girls with dark hair, grey eyes, a delicate white skin, and of a powerful build; late, on the other hand, in girls with chestnut hair, greenish eyes, a coarse darkly-pigmented skin, and of a delicate weakly build.
The genitals of girls in whom the first appearance of menstruation is delayed, frequently exhibit distinct signs of the backwardness of the reproductive organs in their development. The external genitals, in such cases, have little if any covering of hair, and are flabby and relaxed; the body and the fundus of the uterus are shorter and more slender than usual, the uterus as a whole is small and flaccid, sometimes anteflexed; the vaginal portion of the cervix is small, often almost undeveloped, its anterior lip barely projecting above the surface of the vaginal fornix; the vagina is usually short and narrow. The ovaries also are flaccid and inelastic, and occasionally are remarkably small. The breasts are small, the nipples and areolæ undeveloped.
In other cases, notwithstanding the delay in the appearance of the menarche, the genital apparatus is developed to a degree quite in correspondence with the age, but some pathological condition is present, for instance, the mucous membrane secretes excessively, exhibits a catarrhal tendency, there are erosions at the os uteri, etc.