Apo kōpēs eis to bēma: Positiones Peri tēs tōn katamēniōn epochēs

They must be used to draw [blood]: yet their use should be avoided unless a diligent preparation of the body has preceded it. We also use ligatures and frictions for the same purpose, even strong ones.

LXIIII.
In certain cases, bloodletting is absolutely necessary, and the use of cupping glasses is in some way useless. For in those where the veins are large and prominent, bloodletting is suitable: this is also true if the blood is melancholic and thick; however, where it is thin, it is easily drawn out by scarification.

LXV.
The time for bloodletting should not be long before the expected time of the menstrual flow; when the cycle has already approached for the woman by three or four usual days, let it anticipate [the flow], with Galen in his book On the Method of Curing through Phlebotomy, chapter 18.

LXVI.
The fullness of the body and the strength of the vital powers will determine the quantity: where nothing is pressing, it will be safer to repeat the same bloodletting than to evacuate everything at once, either in the same leg or in the other, as shall seem most advisable.

LXVII.
Moreover, for the same people, as in the preceding cases, on the days when you evacuate blood, an attenuating diet must be managed and prescribed: so that all things may promote the natural flow of the menses.

LXVIII.
If menses are suppressed in women due to excessive heat, without a redundancy of hot humors,