Chap. 7. Of Tenesmus.
TEnesmus, is a continual desire to go to stool, and voiding of nothing but Slime or bloody Matter.
The immediate Cause of this Disease, is an Ulcer in the streight Gut called Intestinum rectum; from which, Quittor or filthy Matter continually floweth, and stirreth up the expulsive Faculty, by which means there is a continual desire of going to stool. Moreover, there is voided a slimy Matter mixed with blood, from the depravation of the Homoiosis (or quality that converts things into its likeness) of the ulcerated part, because it cannot wel concoct its proper Nourishment, and make it like it self, but turns it into another slimy substance; as we shewed more at large in Dysenteries, and other Ulcers of the Guts.
But in regard we said in the Chapter of Dysentery, That al the Intestines might be ulcerated in that disease; thence it seems to follow, That the Ulcers of the straight Gut called Rectum belong to a Dysentery. Yet Custom hath so prevailed, that when the Rectum is only hurt, it is called by the name of Tenesmus: And because when other Guts are affected, if the Rectum suffer, there is also Tenesmus or needing, although the disease be then called a Dysentery; therefore Dysentery and Tenesmus are of the same Nature, and have the same Cause, and differ only in respect of the part af∣fected: And therefore we need not repeat the Causes, because they are the same with those that pro∣duce a Dysentery.
For the Knowledg of this Disease, there is no more required but to distinguish it from a Dysen∣tery, which you may learn from the definition. For in a Tenesmus, there is a continual needing; but in a Dysentery it is by fits: besides, in that, after great straining, there is voided only a little slime, bloody or mattery; but in a Dysentery, both Excrements and Humors are continually voided.
The Signs of the Causes are the same with a Dysentery.
As for the Prognostick, Celsus Lib. 4. Cap. 19. saith that a Tenesmus is easily cured, and that of it self it never kils any, yet Galen, 5. de usu partium, cap. 4. reckons it among the chiefest Diseases of the Belly; and truly it may very wel be accounted grievous in respect of its troublesomness and long continuance; yet it is not dangerous except it come of Melancholly, for then it tends to a Can∣cer ulcerated: besides, it brings great inconveniences, as Miscarriage or Abortion to Women. So Hipp. Aph. 27. Sect. 7. saith, If a Woman with Child have a Tenesmus, she wil miscarry. For the continual straining at stool doth much disturb the Womb, which is so neer to the straight Gut. Be∣sides, the same Muscles which serve to throw out the Excrements, are imployed for delivery; there∣fore when they daily compress the lower Belly, they cause Abortion. Lastly, the Ulcers of the Rectum Intestinum being neer the Anus or Fundament, if they contitue long, turn to an incurable Fistula.