Does a colonoscopy go through the mouth?

A camera test inserted through the mouth is usually an upper endoscopy, also called a gastroscopy. It examines the oesophagus, stomach, and the first part of the small bowel. The procedures investigate different parts of the digestive tract.

Both examinations use a flexible tube with a camera, may involve sedation, and can collect tissue samples. That similarity sometimes leads people to use “scope” as a general term. The booking name and preparation instructions reveal which examination is planned.

Colonoscopy requires the colon to be emptied with bowel preparation. Upper endoscopy generally involves fasting because the camera travels through the throat and stomach. Some people have both examinations during one appointment, using separate instruments and entry routes.

Read the appointment letter for the procedure name, fasting directions, bowel-preparation prescription, sedation plan, and arrival arrangements. If any instruction is unclear, call the endoscopy unit before starting preparation. Taking the wrong preparation could delay the examination.

Tell the team about swallowing problems, previous reactions to sedation, heart or lung conditions, diabetes medicines, blood thinners, allergies, and pregnancy. Arrange transport and an adult escort when the unit requires this after sedation.

After a mouth-inserted endoscopy, seek urgent advice for breathing difficulty, severe chest or abdominal pain, vomiting blood, black stools, fever, or inability to swallow fluids. After colonoscopy, warning signs include severe or increasing abdominal pain, a rigid swollen abdomen, heavy bleeding, fever, repeated vomiting, or fainting.

Mild throat soreness can follow upper endoscopy, while temporary wind or cramping can follow colonoscopy. Use the discharge sheet to distinguish expected effects from symptoms that need a call.

Ask which organ the clinician needs to examine, whether one or both procedures are planned, what preparation applies, and whether biopsies or polyp removal may occur. Confirm the sedation choice, medicine changes, escort requirements, and how results will be communicated.