This is an expansion of the vessels of the leg and foot due to the abundance of blood descending into them. For the most part, this is black bile blood, and sometimes it is pure, not black bile blood, and sometimes it is thick, mucous blood, but whatever it is, it is blood in which there is no putrefaction, because otherwise the leg probably would not have been saved from ulceration and malignant tumors. If dilation of the veins occurs, then it mostly occurs in the elders, in walkers, in porters, in bodyguards who constantly stand before kings; most often it happens, if it happens, after acute illnesses, due to which matter rushes to the feet of people predisposed to this from among those mentioned. Sometimes this disease begins as joint pain begins, and often it occurs in the mentioned people when they have a spleen problem. Such dilated veins sometimes cannot be treated, and sometimes they are cut, and from cutting their diseased organ is affected by thinness due to the lack of vessels carrying nutrients to it. With black bile dilatation, if the vein is cut and the disease is suppressed, black bile diseases and melancholy occur, but if the blood is clean and the veins are removed and taken out, then there is nothing to fear from the occurrence of meloncholy. Often the matter located in the dilated veins rots and leads to ulcers.