In this disease there is a partial or total obstruction of the menses in women from other causes than pregnancy and old age. The menses should be regular as to the quantity and quality; that this discharge should observe the monthly period, is essential to health. When it is obstructed, nature makes her efforts to obtain for it some other outlet; if these efforts of nature fail, the consequence may be, fever, pulmonic diseases, spasmodic affections, hysteria, epilepsy, mania, apoplexy, green sickness, according to the general habit and disposition of the patient. Any interruption occurring after the menses have once been established in their regular course, except when occasioned by conception, is always to be considered as a case of suppression. A constriction of the extreme vessels, arising from accidental events, such as cold, anxiety of mind, fear, inactivity of body, irregularities of diet, putting on damp clothes, the frequent use of acids and other sedatives, &c., is the cause which evidently produces a suppression of the menses. This shows the necessity for certain cautions and attentions during the discharge. In some few cases it appears as a symptom of other diseases, and particularly of general debility in the system, showing a want of due action of the vessels. When the menses have been suppressed for any considerable length of time, it not unfrequently happens that the blood which should have passed off by the uterus, being determined more copiously and forcibly to other parts, gives rise to hemorrhages; hence it is frequently poured out from the nose, stomach, lungs, and other parts, in such cases. At first, however, febrile or inflammatory symptoms appear, the pulse is hard and frequent, the skin hot, and there is a severe pain in the head, back, and loins. Besides, the patient is likewise much troubled with costiveness, colic pains, and dyspeptic and hysteric symptoms. _Treatment._