Kitap 4
11
According to medical authorities blood gains exit either from some part eroded, or ruptured, or from the opened mouth of some blood-vessel; the first they call diabrosis, the second rhexis, the third anastomosis. The last is the least harmful, the first, the worst. And often indeed it happens that pus follows the blood. Now at times to stop the bleeding suffices to promote recovery; but if there follow ulcerations, or pus, or a cough, according to the situation there arise various and dangerous classes of diseases. But if only blood flows out, both the remedy and the ending are the quicker. Nor ought we to ignore that in those who are in the habit of bleeding or in whom the back or hips ache whether after hard running or walking, a limited flow of blood is not disadvantageous as long as fever is absent, and when blood is passed by the urine it even relieves this very lassitude; nor indeed, in the case of a fall from a height, is there anything alarming if blood comes with the urine, so long as there is nothing else unusual in the urine; nor does vomiting of blood bring about danger, even when repeated, if before it recurs the body is allowed to regain strength and fill up; and it does no harm at all in a robust man, if not excessive, and when it excites neither cough nor fever.
