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My son is 22 years old. When is a colonoscopy recommended?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I am a 62-year-old single female. I conceived my 22-year-old son through donor insemination. Last year, I learned that his biological father had passed away at 48 due to colon cancer.

  1. At what age should I have my son screened?
  2. Should he get a colonoscopy now or at a later age?
  3. When should he visit a local gastroenterologist now and establish a baseline?

I prefer to have him evaluated sooner rather than later.

Kindly suggest.

Answered by Dr. Ajeet Kumar

Hello,

Welcome to icliniq.com.

I understand your concern. According to the guidelines, any individual with a first-degree relative (biological father in your son's case) with colorectal cancer, called the index case, the person in question should have a screening colonoscopy ten years earlier than the age of diagnosis of colon cancer in the index case.

I would like to know at what age his biological father was diagnosed with colon cancer. The age of diagnosis and death due to cancer are usually not the same. In that case, considering the age at diagnosis of cancer is 45, your son should have a screening colonoscopy at the age of 35 years.

I hope this helps.

Kindly revert in case of further questions.

Thank you.

Patient's Query

Hello doctor,

Thank you for your response. His biological father was diagnosed around age 45 and passed away three years later. I appreciate your advice and would get my son screened at age 30.

Thank you.

Answered by Dr. Ajeet Kumar

Hello,

Welcome back to icliniq.com.

He can have a colonoscopy at 30 years.

I hope this helps.

Thank you.

Answered byDr. Ajeet Kumar

Medically reviewed byiCliniq medical review team

Published At June 27, 2022
Reviewed AtDecember 16, 2025

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Dr. Ajeet Kumar
Dr. Ajeet Kumar

Medical Gastroenterology

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