HomeAnswersHematologyhemoglobinI have low Hb and hematocrit values. Is it due to my habits?

Can smoking and less consumption of water lower the hemoglobin level and hematocrit level?


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Published At June 2, 2023
Reviewed AtDecember 19, 2023

Patient's Query

Hello doctor,

I have recently done my annual physical checkup. My doctor referred me to a hematologist due to a decrease in my hemoglobin level, which is 10.8 % and, as well as my hematocrit level, which was 47% . I have a history of smoking and do not drink sufficient water. Do smoking and less consumption of water the real cause for my concern? Please help.


welcome to the icliniq.com.

I have gone through your query.

Your doctor suspects secondary polycythemia and so you are referred to a hematologist. You are having smoking habit according to provided history.

1. Smoking is the cause of a slightly high HCT in your case.

2. Dehydration also can lead to such changes in Hemoglobin and HCT (Hematocrit TEST).

3. So it is a matter of concern but does not worry much regarding that, according to my opinion.

4. Drink lots of water and stop smoking.

5. Then after a few days, you can repeat your CBC.

For further work, serum EPO (Erythropoietin) estimation can be done. Hope I have answered your question. Let me know if I can assist you further.

I hope this has helped you.

Thanks and Regards.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Goswami Parth Rajendragiri
Dr. Goswami Parth Rajendragiri


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