Descriptions of menstruation from the extremities are quite numerous. Pechlin offers an example from the foot; Boerhaave from the skin of the hand; Ephemerides from the knee; Albertus from the foot; Zacutus Lusitanus from the left thumb; Bartholinus a curious instance from the hand; and the Ephemerides another during pregnancy from the ankle.

Post speaks of a very peculiar case of edema of the arm alternating with the menstrual discharge. Sennert writes of menstruation from the groin associated with hemorrhage from the umbilicus and gums. Moses offers an example of hemorrhage from the umbilicus, doubtless vicarious. Verduc details the history of two cases from the top of the head, and Kerokring cites three similar instances, one of which was associated with hemorrhage from the hand.

A peculiar mode is vicarious menstrual hemorrhage through old ulcers, wounds, or cicatrices, and many examples are on record, a few of which will be described. Calder gives an excellent account of menstruation at an ankle-ulcer, and Brincken says he has seen periodical bleeding from the cicatrix of a leprous ulcer. In the Lancet is an account of a case in the Vienna Hospital of simulated stigmata; the scar opened each month and a menstrual flow proceeded therefrom; but by placing a plaster-of-Paris bandage about the wound, sealing it so that tampering with the wound could be easily detected, healing soon ensued, and the imposture was thus exposed. Such would likely be the result of the investigation of most cases of "bleeding wounds" which are exhibited to the ignorant and superstitious for religious purposes.

Hogg publishes a report describing a young lady who injured her leg with the broken steel of her crinoline. The wound healed nicely, but always burst out afresh the day preceding the regular period. Forster speaks of a menstrual ulcer of the face, and Moses two of the head. White, quoted by Barnes, cites an instance of vicarious hemorrhage from five deep fissures of the lips in a girl of fourteen; the hemorrhage was periodical and could not be checked. At the advent of each menstrual period the lips became much congested, and the recently-healed menstrual scars burst open anew.

Knaggs relates an interesting account of a sequel to an operation for ovarian disease. Following the operation, there was a regular, painless menstruation every month, at which time the lower part of the wound re-opened, and blood issued forth during the three days of the catamenia. McGraw illustrates vicarious menstruation by an example, the discharge issuing from an ovariotomy-scar, and Hooper cites an instance in which the vicarious function was performed by a sloughing ulcer. Buchanan and Simpson describe "amenorrheal ulcers." Dupuytren speaks of denudation of the skin from a burn, with the subsequent development of vicarious catamenia from the seat of the injury.

There are cases on record in which the menstruation occurs by the rectum or the urinary tract. Barbee illustrates this by a case in which cholera morbus occurred monthly in lieu of the regular menstrual discharge. Barrett speaks of a case of vicarious menstruation by the rectum. Astbury says he has seen a case of menstruation by the hemorrhoidal vessels, and instances of relief from plethora by vicarious menstruation in this manner are quite common. Rosenbladt cites an instance of menstruation by the bladder, and Salmuth speaks of a pregnant woman who had her monthly flow by the urinary tract. Ford illustrates this anomaly by the case of a woman of thirty-two, who began normal menstruation at fourteen; for quite a period she had vicarious menstruation from the urinary tract, which ceased after the birth of her last child. The coexistence of a floating kidney in this case may have been responsible for this hemorrhage, and in reading reports of so-called menstruation due consideration must be given to the existence of any other than menstrual derangement before we can accept the cases as true vicarious hemorrhage. Tarnier cites an instance of a girl without a uterus, in whom menstruation proceeded from the vagina. Zacutus Lusitanus relates the history of a case of uterine occlusion, with the flow from the lips of the cervix. There is mentioned an instance of menstruation from the labia.

The occurrence of menstruation after removal of the uterus or ovaries is frequently reported. Storer, Clay, Tait, and the British and Foreign Medico-Chirurgical Review report cases in which menstruation took place with neither uterus nor ovary. Doubtless many authentic instances like the preceding could be found to-day. Menstruation after hysterectomy and ovariotomy has been attributed to the incomplete removal of the organs in question, yet upon postmortem examination of some cases no vestige of the functional organs in question has been found.

Hematemesis is a means of anomalous menstruation, and several instances are recorded. Marcellus Donatus and Benivenius exemplify this with cases. Instances of vicarious and compensatory epistaxis and hemoptysis are so common that any examples would be superfluous. There is recorded an inexplicable case of menstruation from the region of the sternum, and among the curious anomalies of menstruation must be mentioned that reported by Parvin seen in a woman, who, at the menstrual epoch, suffered hemoptysis and oozing of blood from the lips and tongue. Occasionally there was a substitution of a great swelling of the tongue, rendering mastication and articulation very difficult for four or five days. Parvin gives portraits showing the venous congestion and discoloration of the lips.

Instances of migratory menstruation, the flow moving periodically from the ordinary passage to the breasts and mammae, are found in the older writers. Salmuth speaks of a woman on whose hands appeared spots immediately before the establishment of the menses. Cases of semimonthly menstruation and many similar anomalies of periodicity are spoken of.

The Ephemerides contains an instance of the simulation of menstruation after death, and Testa speaks of menstruation lasting through a long sleep. Instances of black menstruation are to be found, described in full, in the Ephemerides, by Paullini and by Schurig, and in some of the later works; it is possible that an excess of iron, administered for some menstrual disorder, may cause such an alteration in the color of the menstrual fluid.

Suppression of menstruation is brought about in many peculiar ways, and sometimes by the slightest of causes, some authentic instances being so strange as to seem mythical. Through the Ephemerides we constantly read of such causes as contact with a corpse, the sight of a serpent or mouse, the sight of monsters, etc. Lightning stroke and curious neuroses have been reported as causes. Many of the older books on obstetric subjects are full of such instances, and modern illustrations are constantly reported.

Menstruation in Man.--Periodic discharges of blood in man, constituting what is called "male menstruation," have been frequently noticed and are particularly interesting when the discharge is from the penis or urethra, furnishing a striking analogy to the female function of menstruation. The older authors quoted several such instances, and Mehliss says that in the ancient days certain writers remarked that catamenial lustration from the penis was inflicted on the Jews as a divine punishment. Bartholinus mentions a case in a youth; the Ephemerides several instances; Zacutus Lusitanus, Salmuth, Hngedorn, Fabricius Hildanus, Vesalius, Mead, and Acta Eruditorum all mention instances. Forel saw menstruation in a man. Gloninger tells of a man of thirty-six, who, since the age of seventeen years and five months, had had lunar manifestations of menstruation. Each attack was accompanied by pains in the back and hypogastric region, febrile disturbance, and a sanguineous discharge from the urethra, which resembled in color, consistency, etc., the menstrual flux. King relates that while attending a course of medical lectures at the University of Louisiana he formed the acquaintance of a young student who possessed the normal male generative organs, but in whom the simulated function of menstruation was periodically performed. The cause was inexplicable, and the unfortunate victim was the subject of deep chagrin, and was afflicted with melancholia. He had menstruated for three years in this manner: a fluid exuded from the sebaceous glands of the deep fossa behind the corona glandis; this fluid was of the same appearance as the menstrual flux. The quantity was from one to two ounces, and the discharge lasted from three to six days. At this time the student was twenty-two years of age, of a lymphatic temperament, not particularly lustful, and was never the victim of any venereal disease. The author gives no account of the after-life of this man, his whereabouts being, unfortunately, unknown or omitted.

Vicarious Menstruation in the Male.--This simulation of menstruation by the male assumes a vicarious nature as well as in the female. Van Swieten, quoting from Benivenius, relates a case of a man who once a month sweated great quantities of blood from his right flank. Pinel mentions a case of a captain in the army (M. Regis), who was wounded by a bullet in the body and who afterward had a monthly discharge from the urethra. Pinel calls attention particularly to the analogy in this case by mentioning that if the captain were exposed to fatigue, privation, cold, etc., he exhibited the ordinary symptoms of amenorrhea or suppression. Fournier speaks of a man over thirty years old, who had been the subject of a menstrual evacuation since puberty, or shortly after his first sexual intercourse. He would experience pains of the premenstrual type, about twenty-four hours before the appearance of the flow, which subsided when the menstruation began. He was of an intensely voluptuous nature, and constantly gave himself up to sexual excesses. The flow was abundant on the first day, diminished on the second, and ceased on the third. Halliburton, Jouilleton, and Rayman also record male menstruation.