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Your large intestine has been examined using ultrasound.

An ultrasound examination involves sending ultrasound waves from an ultrasound probe in the body. Depending on the structure of the tissue, different numbers of ultrasound waves are reflected. These waves are then converted to images that can be viewed on a screen.

To use ultrasound to closely examine tissue or organs, the ultrasound probe should be as close as possible to the location being examined. For this purpose, the ultrasound probe can be inserted into the body using a tube.

To examine your large intestine, a tube with an ultrasound probe was inserted via your anus. The tube was then pushed along to your large intestine. 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).