It may cause a bloating or cramping feeling. This opens up the bowel so they can see the lining clearly. They then gently pump some harmless carbon dioxide gas inside.The colonoscopist will put a colonoscope (thin flexible tube) into your large bowel through your back passage (rectum).drive home afterwards (you will need someone to take you home)Ī colonoscopist will perform your colonoscopy.It is to relax you and make colonoscopy more comfortable. It is usually an injection into a vein in your arm. We will ask you to lie on a bed on your left side with your knees slightly bent up. When you arrive for your appointment you will be able to talk to the nurses and doctors about any concerns or questions you have. This is because we may give you a sedative and you could be drowsy. You will need to arrange for someone to take you home after your colonoscopy. It will cause diarrhoea, so you will need to stay close to a toilet. It is important you take the medicine according to the instructions. The SSP will give you written instructions. When you take the medicine will depend on the time of your appointment. You need to have an empty bowel so the colonoscopist can see the bowel lining clearly. They will also give you a medicine to clear your bowel (a strong laxative). The SSP may give you a list of foods you need to avoid for several days before your colonoscopy. Having the polyps removed is not an option for some people, as the risks of the procedure for them would outweigh the benefits. If we find any polyps using CTC we will talk to you about the possible benefits and risks of having another appointment to have them removed. This will usually be a bowel x-ray called computerised tomography colonography (CTC) - sometimes called a ‘virtual colonoscopy’. If this is the case for you, we may offer you another test instead. Some health issues mean it may not be possible. It can also find polyps, which can usually be removed to stop them growing into cancers.Ĭolonoscopy usually takes 30 to 45 minutes, although the whole appointment may take around 2 hours.Ĭolonoscopy is not appropriate for some people. The colonoscopist uses a thin flexible tube with a tiny camera on the end to look inside your bowel. A colonoscopist (someone specially trained in colonoscopy) carries out the examination. ColonoscopyĬolonoscopy takes place at NHS bowel cancer screening centres, usually in hospitals. Colonoscopy looks for polyps and bowel cancers. Polyps can sometimes change into a cancer over a number of years. Sometimes the cells that make up the bowel grow too quickly and form a clump of cells known as a bowel polyp (some types of polyp are called an ‘adenoma’). The colon and rectum make up the large bowel Bowel cancer and polypsīowel cancer is also known as colon, rectal or colorectal cancer. This appointment will usually be about 2 weeks after your SSP appointment. If you decide to go ahead, we will send you an appointment for colonoscopy at a bowel cancer screening centre. If you are, it is your choice whether to go ahead with the investigation. The SSP will assess if you are fit enough for a colonoscopy. explain the possible risks and benefits.describe what happens during a colonoscopy.talk to you about your screening results.Appointment 1: specialist screening practitioner clinicįirst we offer you an appointment with a specialist screening practitioner ( SSP) to discuss having a colonoscopy. To investigate this we use an examination called colonoscopy. Needing further tests means we found blood in the sample of your poo (also known as faeces, stools or bowel motions). After operation, postoperative anatomical changes such as appendiceal stump after appendectomy and stoma may also be observed.We send this leaflet to everyone who needs further tests after completing the bowel cancer screening test (the FIT kit). The normal variant of colonoscopy includes nonspecific erythema of rectum, iatrogenic mucosal injury, suction polyps, lymphoid nodules, everted appendix, aphthous ulcers, and uterine cervix. The cecum is separated from the terminal ileum by the ileocecal valve. The ascending colon passes downward from the hepatic flexure to the cecum.
The descending colon runs relatively straight along the left flank, and the transverse colon is the longest and most mobile part of the colon. The sigmoid colon forms, on average, 40 cm loop between the rectum and the descending colon. The rectum, about 15–18 cm long, is the final straight part of the colon. The division of the colon into segments is based primarily on anatomical rather than functional aspects: the rectum, sigmoid colon, descending colon, transverse colon, ascending colon, and cecum. Precise knowledge of endoscopic anatomy is essential for training of colonoscopy, correct description of pathological findings, and understanding the clinical characteristics of colorectal disease.
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