Theses de suppressis mensibus

...so too they can affect blood and humors.

XIV.
It will not therefore be absurd to say that nature, while burdened by itself, namely by the abundance and quality of menstrual blood collected and heaped up during the whole space of a Month, and rising up by its own force to expel it: is then especially stimulated by the movement of the Moon, which is the mother and midwife of the moist.

XV.
But if anything else occurs which perverts the order of nature: such as a greater abundance, thinness, and acrimony: or, on the contrary, thickness and scarcity of menstrual blood, and things similar to these: then it happens that the Menses either do not flow at all, or flow perversely.

XVI.
I understand perversely, either by reason of quantity increased or diminished: Or by reason of quality, changed according to consistency, color, heat, and acrimony: Or by reason of time, since they move sooner or later, or, as they commonly say, they anticipate or postpone.

XVII.
About which others [will speak] at other times. Let us treat for the present of that former symptom, the cause of most female diseases, namely, the suppression of the Menses.

XIIX.
And let us define it as the retention of menstrual blood against nature, so that it may thus be distinguished from that which is natural.

What...