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Can a person with a normal CBC have blood cancer?

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Posted on Sun, 3 Feb 2019
Question: Can a person with a normal CBC have blood cancer? Also can a CBC blood test see blood that is actually in the bone marrow?
doctor
Answered by Dr. Arnab Banerjee (40 minutes later)
Brief Answer:
the answer is 'no' to both of your questions...

Detailed Answer:
Hello there,
Welcome to 'Ask A Doctor' service...
I've gone through your query in details...

Well, generally speaking, CBC is just a screening test to assess the blood cells and related disorders...However, CBC can show some dysfunction in a person having blood cancer (however, theoretically speaking, in some rare scenarios, it can be normal too but the chances are quite remote)...

No, CBC cannot see or replace the bone marrow contents, only the bone marrow test can see the bone marrow contents...

Hope this answers your query...

Wish you good health...

Take Care
Kind Regards


Above answer was peer-reviewed by : Dr. Arnab Banerjee
doctor
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Follow up: Dr. Arnab Banerjee (10 days later)
I had a complete blood count on 1/5/19 the white cell count was 6.1, on 1/10/19 I had xrays on both hips, things and spine. On 1/12/19 I had another CBC and the white cell count was down to 5.2, I do NOT often have xrays at all , so my question is - could the xrays have caused my white cell count to go from 6.1to 5.2 in one week?
doctor
Answered by Dr. Arnab Banerjee (15 hours later)
Brief Answer:
no, it's not, they seemed to be fine...

Detailed Answer:
Welcome back,

Thanks for asking...

No, these are minor variation in the body which are considered physiological only...X-ray exposures are for quite a brisk moment and shouldn't be responsible for otherwise healthy individuals well being...

Moreover, the WBC count is well under the normal limit so I don't see any reasons be concerned about...

Let me know if I can assist you further...

Take Care
Kind Regards


Above answer was peer-reviewed by : Dr. Arnab Banerjee
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Answered by
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Dr. Arnab Banerjee

Critical Care Specialist

Practicing since :2012

Answered : 1433 Questions

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Can a person with a normal CBC have blood cancer?

Brief Answer: the answer is 'no' to both of your questions... Detailed Answer: Hello there, Welcome to 'Ask A Doctor' service... I've gone through your query in details... Well, generally speaking, CBC is just a screening test to assess the blood cells and related disorders...However, CBC can show some dysfunction in a person having blood cancer (however, theoretically speaking, in some rare scenarios, it can be normal too but the chances are quite remote)... No, CBC cannot see or replace the bone marrow contents, only the bone marrow test can see the bone marrow contents... Hope this answers your query... Wish you good health... Take Care Kind Regards