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Most of your large intestine has been surgically removed. Your rectum was left in your body.

The large intestine (colon) is like an upside down U in the abdomen. The first part lies in the lower right corner of the abdomen. Then it continues upwards and runs across from right to left. Then it descends again. There then follows an S-shaped part located on the bottom left side of the abdomen, which then merges into the rectum. The rectum is the last section of the large intestine (colon).

The last segment of the large intestine consists of 2 sections. These 2 sections are the rectum and anal canal. The feces are collected in the rectum. The feces then move through the short anal canal to the anus. Feces are excreted through the anus.

To remove your large intestine, your abdomen was opened by making an incision in your skin. The operation involved cutting out your large intestine up to your rectum and your anal canal. To do this, your large intestine was separated from your small intestine at its top end. The mucous membrane was also removed from the remaining rectum.

The end of your small intestine was then stitched to your anal canal or your anus. In the process, the lower end of your small intestine was made into a sort of pouch. The intestinal waste is now collected in this pouch before it is excreted.