Ren yu Zhang, MD

Colonoscopy Specialist

Board-Certified Colorectal Surgeon located in Las Vegas, NV

Colonoscopy services offered in Las Vegas, NV

To screen for colon cancer, there’s no better option than a colonoscopy. At his office in Las Vegas, Nevada, Ren Yu Zhang, MD, offers this procedure to identify polyps that can increase your risk for cancer. He also performs colonoscopies to diagnose the underlying cause of intestinal issues like chronic constipation and abdominal pain. To schedule a colonoscopy, call the office today or book an appointment online. 

Colonoscopy Q & A

What is a colonoscopy?

A colonoscopy is a diagnostic procedure to identify abnormalities in your colon (large intestine) and rectum. It’s the most effective way to screen for colon cancer.

The procedure involves a colonoscope, a long, flexible tube that has a light and tiny camera.

Why would I need a colonoscopy?

You may need a colonoscopy if you have unexplained symptoms like:

  • Abdominal pain
  • Chronic diarrhea
  • Chronic constipation
  • Rectal bleeding

If you’re over 50 or have other risk factors for colon cancer, Dr. Zhang can also perform a routine colonoscopy to identify suspicious tissue or polyps. You should have a colonoscopy every 10 years, or sooner depending on your risk factors for cancer.

What happens during a colonoscopy?

To start your colonoscopy, Dr. Zhang provides a sedative to keep you comfortable and relaxed. You lie on your side on an exam table, so he can insert the colonoscope into your rectum. The camera on the colonoscope provides real-time images of your rectum and colon.

Dr. Zhang watches the images on an external monitor to identify the cause of unusual gastrointestinal symptoms. He can also check for abnormal growths (polyps) that can increase your risk for colon cancer.

Dr. Zhang may force air through the scope to better see the lining of your colon. You may feel mild cramping or the need to have a bowel movement when this happens.

If you have polyps in your colon, Dr. Zhang can insert specialized surgical tools through the scope to remove them. He can also take a sample of suspicious tissue for further testing under a microscope.

What happens after a colonoscopy?

After your colonoscopy, you need time to recover from the sedative, so arrange for someone to drive you home. Before you leave, Dr. Zhang can discuss the results of your test.

If he removes polyps during your procedure, Dr. Zhang can recommend a special temporary diet that you need to follow.

It’s normal to experience gas and bloating after a colonoscopy. You may also see a small amount of blood after a bowel movement.

Dr. Zhang sends tissue samples and polyps he removes to a medical lab for further testing. If there are any cancerous cells in the tissue, he contacts you to discuss additional treatments you may need for colon cancer.

Call the office of Ren Yu Zhang, MD, today to learn more about the benefits of a colonoscopy, or book a consultation online.