The anal and rectal mucous membrane is of a firm and tough structure, similar to the integument at the bottom of a boy's heel. After many years' observation of diseases of the anus and rectum I am forced to conclude that as a rule inflammation exists in the tissues twenty or more years before the severe symptoms, such as piles, fissure, anal pockets, pruritus, hypertrophy, atrophy, tabs, abscesses, and fistula, are sufficiently annoying to compel the sufferer to seek medical aid. I believe it to be of as much importance to give early attention to disease of the anus and rectum as to teeth and eyes, or even more.

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CHAPTER XV.

BALLOONING OF THE RECTUM—CONTINUED.

In the last chapter a description was given of the anatomy of the anus and rectum; and it was shown how a chronic inflammatory process involving these organs develops stricture in the parts invaded; and it was shown how a partial stricture of the anal canal results in ballooning or dilatation of the lower part of the rectum. The primary cause of all the symptoms of rectal disease is chronic inflammation (proctitis) involving the whole structure of the anal tubes and in a few cases the sigmoid flexure as well.

Perhaps the first marked symptom of disease of the rectum is constipation, semi-constipation or of chronic character. The function of the anus and rectum being disturbed by the inflammation, the fecal mass is unduly retained and its moisture is absorbed by the system. This accounts for the condensed and hardened fecal mass in isolated lumps of various proportions. A hard-formed stool is abnormal, and is evidence of auto-infection. When three-fourths of the normal fecal mass has been re-absorbed by the system, does it not stand to reason that the blood and tissues have been poisoned by their own waste products (auto-intoxication) and that anemia, emaciation and local disturbances of other organs of the body are symptoms of such intoxication?

The loading and blocking of the sigmoid flexure come from too much activity or irritability, due to inflammation, of the upper half of the rectal tube. A consequence of this excessive sensitiveness is a diminished or perverted normal stimulus, notice or desire, that the act of defecation should take place.

The victim of proctitis simply forms a habit of daily soliciting an evacuation, though the normal invitation or desire to stool may be entirely absent, and the evacuation in such cases is attended with more or less delay and straining effort to accomplish partially or wholly the expulsion of the more or less inspissated feces.

As the extreme sensitiveness of the inflamed upper half of the rectum offers resistance to the passage of the fecal contents of the sigmoid flexure; so, in a somewhat similar manner, the inflamed anal tube, in its more or less constricted state, prevents the passage of feces and gases as they approach the terminal part of the rectum. As a consequence, the feces and gas deposit and lodge at this latter location, producing in so doing the abnormal cavity called ballooning of the rectum, so often found just above the anal tube.

The greatest depth of the dilated pouch is on the posterior wall of the rectum, or just in front of the tip of the coccyx. In some cases the pouch measures two and a half inches in depth at the back and gradually diminishes in depth on each side as you near the anterior wall of the rectum. Often the upper end of the anal canal is higher than the depressed circumference of the spacious cavity that almost surrounds it. The irritable orifice of the cavity will invariably compel a quantity of liquids and feces to lodge in the cavity as a permanent cesspool, allowing the absorbent vessels to absorb as much as they can by incessant work. The height or length of this abnormal cone-shaped rectal cavity is from two to three inches, involving usually the lower half of the rectum. The anal canal frequently becomes shortened by the dilating process to a quarter of an inch, leaving two frail, irritable muscles at the vent, to guard the rectal cavity. And fortunate are these two thin, sore, contracted muscles, and the possessor of them, if they escape the surgeon's barbarous notion of operating on them.