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Colonoscopy Specialist

Marcus M. Aquino, MD, FACS, FASCRS -  - Colon and Rectal Surgeon

ColoProctology Associates & nasaHernia

Marcus M. Aquino, MD, FACS, FASCRS

Colon and Rectal Surgeon & Hernia Surgeon located in Galveston Bay Area, Seabrook, TX

In a given year, doctors diagnose over 101,000 new cases of colon cancer and 44,000 cases of rectal cancer. Because a colonoscopy continues to be the leading diagnostic tool to identify these kinds of cancers early, Marcus Aquino, MD, FACS, FASCRS, of ColoProctology Associates & nasaHernia provides advanced colonoscopy screenings in Seabrook, Texas. If you have a personal or family history of colorectal cancer or are over age 45, a colonoscopy may be recommended. Book your colonoscopy through the website or call the office to schedule an exam.

Colonoscopy Q&A

Why do I need a colonoscopy?

A colonoscopy is necessary to evaluate your bowels and get to the root of any symptoms you may be experiencing. You may need a colonoscopy if you have:

  • Bloating, recent unexplained constipation or diarrhea
  • Unexplained weight loss
  • A history of polyps or colon/rectal cancer in your family
  • A change in your bowel habits.
  • Rectal bleeding or passage of mucus.
  • You are 45 years or older.


While colonoscopies are important whenever you’re experiencing any of these issues, they’re also routine screenings as you get older. In general, you should start having regular colonoscopy screenings after the age of 45, or sometimes sooner if you have a personal or family history of colorectal cancer. 


What can I expect during a colonoscopy?

ColoProctology Associates & nasaHernia provides colonoscopies in a comfortable setting, so you can relax and have a stress-free test. You’re going to be in a twilight sleep during your colonoscopy, as  Dr. Aquino administers an intravenous (IV) sedative medication to help you relax to an almost hypnotic level.

During your colonoscopy, you’re going to lie on your side and bring your knees up to your chest. Dr. Aquino gently inserts the colonoscope into your rectum. The scope has a small camera at the end that allows Dr. Aquino to closely visualize the inside of your bowels on a monitor.

After channeling air or carbon dioxide into your rectum to expand your bowels, Dr. Aquino slowly moves the scope further into your colon. He can extend the colonoscope all the way into your colon to view the entire length.

Dr. Aquino takes images of concerning tissues along the way. He’s even able to insert thin surgical instruments through the colonoscope to take biopsies of polyps or other growths.

Is a colonoscopy painful?

A colonoscopy shouldn’t cause you pain, although you’re probably going to feel some pressure. As Dr. Aquino moves the scope deeper into your colon or introduces more air, you might experience some cramping. This sensation feels very similar to gastrointestinal gas and may be uncomfortable, but not painful. Most of the time you will not remember anything after the procedure is over. 


How do I prepare for a colonoscopy?

To prepare for your upcoming colonoscopy at ColoProctology Associates & nasaHernia, you need to begin a bowel prep one or two days beforehand. Preparing for a colonoscopy involves:

  • Taking laxatives
  • Using enemas
  • Consuming only clear liquids
  • Avoiding red liquids  

You may also need to stop taking certain medications, especially blood thinners, recreational drugs, weight loss medications and/or supplements that may think your blood.  Dr. Aquino will let you know ahead of time if this applies to you.

If you need a colonoscopy, contact ColoProctology Associates & nasaHernia for an evaluation today. You can conveniently schedule through the website at any time, or by calling the office today.