Colorectal Cancer FAQ Forest Hills

Medically reviewed by Dr. Samuel Davidoff, MD, Board-Certified Gastroenterologist & Hepatologist | 18+ Years Experience | Last Updated: April 2026

Get answers to colorectal cancer questions from Dr. Yuriy Israel. Learn about symptoms, causes, diagnosis, and screening.

Warning Signs

Q:

how do you know if you have colorectal cancer?

A:

Colorectal cancer can be asymptomatic in some people. Symptoms may include changes in bowel habits, blood in stools, abdominal pain, or weight loss. However, some people may not have any symptoms, which is why regular screening starting at age 45 is important.

Causes & Risk Factors

Q:

what causes colorectal cancer?

A:

There are many causes, including genetic factors like a family history of colon cancer, certain genetic syndromes, and environmental and dietary factors. The most important prevention method is a high-fiber diet and regular screening.

Q:

can smoking cause colorectal cancer?

A:

Smoking has been tied to an increased risk of several cancers, including colorectal cancer, but there is no direct link established yet.

Diagnosis

Q:

how is colorectal cancer diagnosed?

A:

The best way to diagnose colon cancer is through a colonoscopy, which allows us to take biopsies of suspicious areas. It can also be detected through blood work and imaging studies.

Medical Disclaimer: The answers on this page are for general educational purposes only and do not constitute medical advice, diagnosis, or a treatment plan. Colorectal cancer screening guidelines vary based on individual risk factors, family history, and clinical history. Consult your physician to determine the appropriate screening schedule for you. Call (718) 261-0900 to speak with our team.

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