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Rbc count high
My son, 21 yrs old has rbc count 6.75 and hemoglobin 17.19. in cbc test. Is it normal? Pls reply...
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Is RBC 6.75 and Hemoglobin 17.19 normal for a 21-year-old?
Yes — in most healthy young men, these values can be normal, depending on height, body build, and hydration status.
Normal RBC count for adult males:
4.5 – 6.0 million/µL
Your son: 6.75 → Slightly higher, not dangerous
Normal Hemoglobin for adult males:
13.5 – 17.5 g/dL
Your son: 17.19 → Upper normal range
So his hemoglobin is at the higher end but still within the accepted normal range for men.
Common causes of mildly high hemoglobin/RBC in healthy young males
These are not harmful:
– Naturally higher levels in young adult males
– Athletic build or exercise
– Living in hot climate (mild dehydration increases Hb/RBC temporarily)
– High-protein diet
– Mild dehydration on the day of test
– Genetics (family pattern)
These do not require treatment.
Next Steps
When do we investigate further?
Only if:
• Hemoglobin >18.5
• Hematocrit (PCV) >52%
• Symptoms like headache, dizziness, redness of face
• History of smoking
• Known lung disease
• Snoring/possible sleep apnea
If none of these are present, no concern.
What you can do next
Just check:
• PCV/Hematocrit value (in the same CBC)
• Repeat CBC after proper hydration in 2–3 weeks, if you want confirmation.
Most of the time, numbers come slightly down after hydration.
Health Tips
Your son’s hemoglobin and RBC count are on the higher side but still within the normal range for adult males. This is usually normal at his age and not dangerous. No treatment is needed unless values continue rising or he has symptoms.
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It's in higher side . Send the complete report.. need more blood test.. connect on practo
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It is higher side of normal.
Please share if he has any problem, why was this test done?
If he has no problem, there is nothing to worry.
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No problem if its above 10_ 12 u need haematologist.
Hb is very high. He can donate one unit of blood to balance all. Other wise phlebotomy ny md physician in hospital done which total waste of blood.
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Need few more details for proper understanding of your issue.
You can consult with me online on Practo or whatsapp on eight three one eight four six nine eight eight six for proper diagnosis, conclusion and management
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Dr. Chaithra H
General Physician
5 yrs exp
Bangalore
Can progress to polycythemia in future
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Dr. Digvijay Vashistha
General Physician
1 yrs exp
Faridabad
If you need guidance, I’m here—feel free to book your consultation.
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Dr. Shivam Mishra
General Physician
5 yrs exp
Mumbai
Your son’s RBC count 6.75 million/µL and hemoglobin 17.19 g/dL are on the higher side of normal.
This pattern is usually seen in:
Physiological causes like dehydration, intense exercise, or staying in high-altitude areas
Smoking, even passive
Early polycythemia (rare but should be ruled out)
Excessive protein supplements or bodybuilding routines
High Hb/RBC is not automatically dangerous, but it must be evaluated with his symptoms, hydration status, oxygen saturation, and the rest of his CBC.
Before concluding anything, I would need:
MCV, MCH, RDW values
Whether he has headaches, dizziness, redness of face, or breathlessness
Lifestyle history
Any recent fever or fluid loss
Once these are assessed together, we can clearly decide whether it’s normal for him or needs further work-up.
If you want a proper review of the entire CBC and guidance on what the next steps should be, you can message me privately on w.h.a.t.s.a.p.p nine three two six zero two zero five three six for a complete assessment.
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Dr. Gaurav Jaiswal
General Physician
6 yrs exp
Jhansi
Do connect and consult
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Dr. Anuj Mothsra
General Physician
6 yrs exp
Jhunjhunu
Can help you, kindly consult and provide detailed history for proper diagnosis and further management
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