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What to Expect During a Colorectal Cancer Screening ,
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Going for a colorectal cancer screening can be a daunting experience, but it is necessary. David P Yamini, MD is a Santa Monica and Beverly Hills Gastroenterologist who emphasizes the importance of regular screenings to detect any signs of cancer early on, when it is most treatable. If you are due for a screening or have never had one before, here’s what you can expect during the process.

What Screenings Are Available?

The first thing you should know is that several types of colorectal cancer screenings are available. Dr. Yamini will recommend the best option for you based on your age, health history and other factors. The most common screenings are colonoscopies, stool tests and virtual colonoscopies.


A colonoscopy is a procedure that allows your doctor to examine the entire length of your colon using a flexible tube with a camera on the end. You will be sedated during the procedure, and your doctor will insert the tube through your rectum and into your colon. The camera will transmit images of your colon to a monitor, allowing your doctor to look for any abnormalities, such as polyps or cancerous growths. The entire procedure usually takes about 30 minutes to an hour.

Stool Tests

Stool tests are another type of screening that can be done at home. Dr. Yamini can provide you with a kit that allows you to collect a small sample of your stool, which is then sent to a lab for analysis. The lab will look for any signs of blood or other abnormalities that may indicate the presence of cancer.

Virtual Colonoscopy

Virtual colonoscopies, or CT colonographies, use advanced imaging technology to create detailed images of your colon. During the procedure, you will lie on a table while a CT scanner takes multiple pictures of your abdomen and pelvis. The images are combined to create a 3D image of your colon, which Dr. Yamini can examine for any signs of cancer or abnormalities.

How Do I Prepare?

No matter the screening type you undergo, following your preparation instructions carefully is essential. For example, if you have a colonoscopy, you must follow a special diet and take medication to help empty your colon before the procedure. You may also need to adjust your medication regimen in the days leading up to the screening.

What Happens During the Screening?

During a colonoscopy screening, you can expect to feel some discomfort or pressure as the tube or scanner is inserted into your rectum. However, you should not experience any pain. If you do feel pain, let a team member know immediately. After the screening, you may feel some bloating or cramping, but this should subside within a few hours. A virtual colonoscopy does not involve invasive measures, so you should feel no discomfort.

If your screening results come back abnormal, don’t panic. Many abnormal results are nothing serious, and Dr. Yamini will work with you to determine the best course of action. If cancer is detected, early treatment is critical to improving your chances of a full recovery.

While a colorectal cancer screening may not be the most pleasant experience, it is essential. Regular screenings can help detect cancer early on, when it is most treatable. If you are due for a screening or have never had one before, contact us to schedule your screening. Remember, early detection saves lives!

Posted on behalf of David P. Yamini, MD

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Our Patient Reviews

David P. Yamini, MD

4.9 / 5.0

Based on 58 reviews

Nicole R.

Scheduling was extremely easy with Dr. Yamini's staff, I scheduled my Tuesday appointment on Monday afternoon. The staff and Dr. Yamini were courteous and straightforward - even with new patient paperwork I was out the door within an hour!

Bill C.

Dr. Yamini definitely is a great doctor who is very thorough and detail oriented with his diagnosis. He is very passionate about what he does and was able to answer any question or concern. He took his time before my appointment to look through all the documentation to know exactly what was going on. He definitely was able to put me at ease even though I was very worried. I am very satisfied with his services. Thanks!

Mario O.

He was very gentle about my situation yet did not fail to emphasize about the seriousness that could arise from gastrointestinal problems. Few and far between are as professional and caring as Dr. Yamini and his staff. I was 20 minutes late on Friday evening & they still had me in a room in 5 minutes as a new patient.

Lisa P.

I can’t say enough great things about my first impression of this doctor and his amazing staff! They got me right in and set me up for everything needed. I’ve been looking for the right GI doctor for years having had a very negative experience with another doctor years ago. Dr. Yamini is not only professional, knowledgeable, respectful, and experienced... this guy is “cool” and nice too! His front desk person, Toni was amazing! She was kind, bright, efficient, patient, and positive! ??

Kendall S.

Makes talking about uncomfortable subjects a breeze. Competent and honest: doesn't sell vitamin cleanses and his own probiotics or anything like that. Makes sure your symptoms aren't half-fixed but fully fixed. Gets to the heart of the issue quickly. Good listener. Very sweet receptionist. I hate receiving many phone calls, and she's persistent about making sure you set up an appointment; it was stressing me out. I found the her much easier to connect with once she gave me her cell and said to text.

Babak E.

Thank you Dr. Yamini and Tony. When it comes to patient care and professionalism, I have never received this much care and attention from a physician and the staff. I was able to talk to Dr. Yamini for good period of time allowing me to ask all my questions. Tony you are so cute thank you for scheduling me in last minute.

Kyle K.

I highly recommend Dr. Yamini. He's very personable and actually listens to your issues and concerns, then recommends a reasonable course of action. He was able to properly diagnose my symptoms and get me healthy again. Also his admin Toni is great too, she will help select a facility and verify that your insurance will fully cover. She's really nice and trustworthy as well!

Eric W.

Thorough doctor who cares about his patients, and very meticulous about the details of your ailment. Clearly very knowledgeable and skilled. No wait time for appointments, and the nurse (Toni) is very friendly and follows up appropriately. One of the best doctor experiences I've had and I'd recommend it to anyone.

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