ENYes, they do: colonoscopies are done across Europe, Germany included, both for symptoms and for bowel cancer screening. Colonoscopies are routine in Europe; what differs is screening: most programmes start with a stool test, using colonoscopy if it is positive, while Germany also offers screening colonoscopy directly.
Below: how a German endoscopy unit runs the examination, the prep and what to settle before booking. Of the tests that view the whole large bowel, only colonoscopy can remove a polyp in the session that finds it.
When a colonoscopy is done
A colonoscopy is done promptly for warning signs: blood in the stool, a lasting change in bowel habit, repeated severe abdominal pain or unexplained anaemia. A stool test cannot replace it: designed for people without symptoms, it detects only blood and can miss a tumour.
From 50, Germany’s screening programme lets insured people choose an immunochemical stool test every two years or two colonoscopies 10 years apart, on equal terms for women and men since 1 April 2025 (Krebsinformationsdienst of the German Cancer Research Center). A positive stool test always entitles the patient to a colonoscopy, which finds the bleeding source and removes a polyp at once. Most European programmes start with the stool test for reasons of evidence, cost and endoscopy capacity, as an EU Council recommendation advised; Germany allows colonoscopy directly.
If a parent, sibling or child had bowel cancer, the first colonoscopy is advised ten years before the relative’s age at diagnosis; inherited forms may need earlier, more frequent checks. After polyp removal the next one may be due sooner, depending on the polyps’ number, size and tissue type. See bowel cancer treatment in Germany.
NordICC, the large European study that made headlines, was published in the New England Journal of Medicine in 2022. People in several countries were invited to one screening colonoscopy; over ten years, the invited were diagnosed with bowel cancer less often than the uninvited, though fewer than half came (study abstract on PubMed). The effect was smaller than earlier studies suggested, but larger among those examined. That argues for taking part and for careful, well-prepared colonoscopy, not against it; for someone with symptoms it changes nothing.
Bowel preparation: the part that decides the result
For a colonoscopy in Germany the bowel must be empty: a small or flat polyp behind residue is invisible, and examining a poorly cleaned bowel is like driving in fog. Such an examination cannot set the standard interval and is repeated sooner, so units are strict about the prep.
For several days, up to a week, patients avoid hard-to-digest food: muesli, coarse wholegrain bread and anything with seeds or pips, such as grapes, kiwis, tomatoes and berries. Once the cleansing drink starts, only clear fluids are allowed. It is usually split between the evening before and early morning.
Tell the unit in advance about medicines and illnesses. Blood thinners raise the bleeding risk after polyp removal; the doctor decides whether to pause them. Iron tablets are stopped a few days before. With diabetes and insulin, the prep is adapted. Mention a pacemaker or defibrillator: polyps are often removed with an electric snare, whose current can affect the device.
The examination itself
The examination usually takes about half an hour. The patient lies on their side while the colonoscope is advanced through the whole large bowel, widened with air or carbon dioxide. The key work comes on the way out, as the lining is inspected section by section; finding a polyp makes it longer.
A colonoscopy is uncomfortable but rarely painful. Patients usually get a sedative or painkiller, and on request sedation (for example with propofol), a short medicated sleep. They are warned that for 24 hours they must not drive, drink alcohol or make important decisions, such as signing documents; an adult companion should take them back.
A polyp is usually removed in the same session with forceps or a snare passed through the scope, so it is not a separate operation, and removal is painless. Everything removed is checked under the microscope. More on polyp removal in Germany and in colonoscopy reviews.
Afterwards: the report and what it changes
The doctor explains the preliminary result straight away: whether the lining looked normal and which polyps were removed. The final answer comes from histology, the microscopic tissue examination, usually within a few days.
The written report is the key document to take home. It records how clean the bowel was and whether the scope reached the caecum, the start of the large bowel, showing the examination was complete; a photograph confirms it. Have the conclusion, prep rating, polyp descriptions and recommended interval translated.
The findings set the next date; note it at once. After a normal result, the German programme offers the next colonoscopy after 10 years: bowel cancer usually develops from benign growths, and the risk within that time is very low. Repeating sooner without reason adds risk and cost, not safety. A stomach check fits the same trip: see gastroscopy in Germany and diagnostics in Germany.
Cost and how the trip is organised
The bill covers the examination, sedation, any polyp removal and histology of each sample, separate items in the German fee schedule (GOÄ). So the estimate for «a colonoscopy» and the final figure after two polyps were removed differ, and this is said beforehand. See colonoscopy price in Germany.
A hospital stay is usually unnecessary, so one or two days suffice: the day before, a talk with the doctor, blood tests if requested and the prep; on the day, the colonoscopy, rest after sedation and the preliminary result. An escort is needed. Histology follows within days, collected on site or sent home translated.
Frequently asked questions
Is a stool test enough instead of a colonoscopy?
For screening without symptoms, yes: from 50 the German programme offers an immunochemical stool test every two years as an equal alternative. But it only detects hidden blood and removes nothing, so a positive result still needs a colonoscopy. With symptoms, a stool test is no substitute.
Does a screening colonoscopy really lower the risk of bowel cancer?
Yes, though much depends on taking part and on the examination’s quality. In NordICC, the invited were diagnosed with bowel cancer less often over ten years than the uninvited, although fewer than half came; among those examined the effect was larger. Removing polyps, the usual precursors of cancer, also makes colonoscopy preventive.
Does a colonoscopy hurt?
Usually not: it is uncomfortable but rarely painful. Patients normally receive a sedative or painkiller, and on request sedation that lets them sleep through it. Bloating from the air used to widen the bowel is common afterwards. Taking samples and removing polyps are painless.
How often should you have a colonoscopy?
If nothing is found, every 10 years: from 50 the German programme offers two colonoscopies at that interval. After polyp removal it may be shorter, depending on the polyps’ number, size and histology. With bowel cancer in a close relative, the first colonoscopy is advised ten years before the relative’s age at diagnosis.
How AlenMed arranges a colonoscopy in Germany
AlenMed chooses the endoscopy unit to suit the reason for the examination and the patient’s health; with serious chronic illness or poorly controlled diabetes, a large hospital is safer. We book the date, send a written estimate, arrange the visa invitation and provide an interpreter for the pre-procedure talk and the report.
The patient takes home the report with images, the translated histology and the recommended interval. If the findings need treatment, we arrange a specialist consultation and the next step in Germany.
This material is for information only and is not an offer. A doctor decides on the indications and scope of the examination in person.