By James Law, F. R. C. V. S.,
Formerly Professor of Veterinary Science, etc., in Cornell University.
[Revised by Adolph Eichhorn, D. V. S.]
GENERAL DISCUSSION.
Diseases of the generative organs are practically confined to animals which are kept for reproduction and the dairy. The castration of the bull condemns these organs to inactivity and protects them from the many causes of injury attendant on the engorged blood vessels in the frequent periods of sexual excitement, on the exposure to mechanical violence, and on the exposure to infective inoculation. In three respects the castrated male is especially subject to disease: (1) To inflammation and tumefaction of the cut end of the cord that supported the testicle and of the loose connective tissue of the scrotum; (2) to inflammation of the sheath and penis from the accumulation of gravel in the former, from which the penis is not usually protruded in passing water; and (3) to bruising, abrasion, and inflammation of the sheath and penis during suspension in the stocks for the purpose of shoeing. Apart from these the ox is practically almost exempt from the inflammations and injuries of the genital organs. The same applies to the castrated heifer. Inflammation may occur in the broad ligament of the womb whence the ovary has been removed or infective inflammation in the abdominal cavity (peritonitis) in case the operation has been performed through the flank, as it usually is in the young heifer. Apart from these, the castrated heifer is practically immune from any trouble of the generative apparatus. Even the virgin heifer is little subject to such troubles, though she is not exempt from inflammations, and above all, from morbid growths in the ovaries which are well developed and functionally very active after the first year, or in precocious animals after the first few months of life. The breeding cow, on the other hand, is subjected to all the disturbances attendant on the gradual enlargement of the womb, the diversion of a large mass of blood to its walls, the constant drain of nutrient materials of all kinds for the nourishment of the fetus, the risks attendant and consequent on abortion and parturition, the dangers of infection from the bull, the risks of sympathetic disturbance in case of serious diseases of other organs, but preeminently of the urinary organs and the udder, and finally the sudden extreme derangements of the circulation and of the nervous functions which attend on the sudden revulsion of a great mass of blood from the walls of the contracting womb into the body at large immediately after calving.
In reviewing this class of diseases, therefore, we have to note, first, that they are almost exclusively restricted to breeding animals, and secondly that in keeping with the absolute difference of the organs in the male and female we find two essentially distinct lists of diseases affecting the two sexes.
EXCESS OF VENEREAL DESIRE (SATYRIASIS IN MALE, OR NYMPHOMANIA IN FEMALE).
This may occur in the male from too frequent sexual intercourse, or from injury and congestion of the base of the brain (vasodilator center in the medulla), or of the posterior end of the spinal cord, or it may be kept up by congestion or inflammation of the testicles or of the mucous membrane covering the penis. It may be manifested by a constant or frequent erection, by attempts at sexual connection, and sometimes by the discharge of semen without connection. In bad cases the feverishness and restlessness lead to loss of flesh, emaciation, and physical weakness.
It is, however, in the female especially that this morbid desire is most noticeable and injurious. It may be excited by the stimulating quality of the blood in cows fed to excess on highly nitrogenous feed, as the seeds of the bean, pea, vetch, and tare, and as wheat bran, middlings, cotton seed, gluten meal, etc., especially in the case of such as have no free exercise in the fields, and are subject to constant association with a vigorous young bull. A more frequent cause is the excitation or congestion of some part of the genital organs. Disease of the ovaries is preeminently the cause, and this may be by the formation of cysts (sacs containing liquid) or of solid tumors or degenerations, or, more commonly than all, the formation of tubercle. Indeed, in case of tuberculosis attacking the abdominal organs of cows, the ovaries or the serous membranes that support and cover them (the broad ligaments of the womb) are peculiarly subject to attack, and the animal has constant sexual excitement, incessantly riding or being ridden by other cattle, having no leisure to eat or chew the cud, but moving restlessly, wearing the flesh off its bones, and gradually wasting. In some localities these cows are known as "bullers," because they are nearly always disposed to take the bull, but they do not conceive, or, if they do, they are subject to early abortions. They are, therefore, useless alike for the dairy and for the feeder, unless the removal of the ovaries subdues the sexual excitement, when, in the absence of tuberculous disease elsewhere, they may be fattened for the butcher.
Among the other sources of irritation charged with causing nymphomania are tumors and cancers of the womb, rigid closure of the neck of the womb so that conception can not occur and the frequent services by the male which stimulate the unsatisfied appetite, inflammation, and a purulent discharge from the womb or vagina.