A member asked:

Is ct scan is the major risk factor for cancer? should i be worried if i had one ct scan at the age of 30yr?will it cause cancer later in the life?

4 doctors weighed in across 3 answers
Dr. Tso Chen answered

Specializes in Internal Medicine

A risk: Ct scan can cause a very small increase in the risk of cancer if frequent scans are done over the lifetime. Currently, there is no guideline recommending the limit of ct scans. Having one ct scan at age 30 is likely not to have any significant consequence. Be sure to discuss with your doctor before each scan to see if it's medically necessary.

Answered 7/2/2015

4.1k views

Thank
Dr. Jeffrey Buchsbaum answered

Specializes in Radiation Oncology

Not the biggest risk: Risk of one scan increases your lifetime risk about 0.08%...Low energy scans now even less. Annual from age 25 onward is about 3.8% risk. Older ct's were 1300 mrem...Annual exposure just living is 300 or so...If you live some places it can be 500 or 600 (more rock...Etc.). If it was needed, it likely helped more than hurt. If not needed, we teach to avoid unneeded radiation.

Answered 10/23/2017

4.1k views

Thank
Dr. Ed Friedlander answered

Specializes in Pathology

Forgive my frankness: A CT scan delivers around 3 mSV of radiation, the same as the extra radiation that an airline pilot gets in a year. Nobody's shown an increase in cancer in pilots. Radiation safety officers allow workers 20 mSV/year, and these workers don't get more cancer either. Do yourself a favor and stop reading doctor-bashing websites written by crooks. If you needed the scan, any risk was well worth it.

Answered 7/2/2015

2.6k views

Thank

Related Questions

Online Primary Care Doctors Accepting New Patients

$44 video appointments available today with a membership as low as $15/month

Book a Video Appointment
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question