Colorectal cancer screening

Colorectal cancer is one of the most common types of cancer in Switzerland. Targeted screenings can detect the cancer (or precancerous lesions) at an early stage. The earlier the cancer is detected, the less invasive the treatment and the better the chances of recovery.

A colonoscopy is performed using a flexible tube (endoscope) with a camera and light source at its tip. You will receive a sedative (propofol) through an IV line, ensuring the examination is painless. During the procedure, your blood pressure, pulse, and oxygen levels will be monitored. You will lie on your side while the colonoscope is carefully inserted through the anus into the large intestine. The camera allows the lining of the colon to be examined and any abnormalities to be detected. If necessary, small tissue samples can be taken, polyps removed, or bleeding treated. The actual examination usually takes about 30 minutes, while the entire procedure, including preparation and recovery, takes approximately 1.5 to 2 hours.

For a successful examination, the bowel must be completely cleansed. You will receive special laxatives and instructions on which foods you may eat in the days leading up to the examination. You must be fasting for the examination. Clear liquids are permitted up to two hours before the examination. Blood thinning or other medications should be discussed with the doctor beforehand.

Immediately after the colonoscopy, you will be monitored briefly until the sedation wears off. A feeling of fullness or mild abdominal cramps due to the air introduced during the examination are possible. Eating, drinking, and taking medication are usually permitted immediately after the examination, unless there are specific instructions. If tissue samples were taken or polyps removed, you will receive the results later. After an examination under sedation (propofol), you must not drive for 12 hours.

In principle, all persons aged 50-69 residing in the cantons of Basel-Stadt and Basel-Landschaft who have not had a colonoscopy within the past 10 years are eligible to participate. Furthermore, you should not currently have any bowel problems requiring investigation (e.g., blood in the stool).

Examinations within the cantonal program are exempt from the deductible. You only pay the co-payment of 10%. For a colonoscopy, this co-payment is between CHF 70 and 150 (every 10 years).

This amount includes the cost of the colonoscopy and the cost of examining any tissue samples taken. Additional costs (such as general practitioner fees or bowel preparation medication) may apply and are not exempt from the deductible.

First, you will need a reference number. If you have already received an invitation letter, you will find the reference number on it. Otherwise, you can request the invitation letter via the link on the left, which will then be sent to you by mail within 8 business days.

Once you have received your reference number, you can register for the colorectal cancer screening program and subsequently schedule an appointment for your colonoscopy with us. A doctor's referral is not required.