Is RBC 6.65 high, normal or dangerous? What does Red blood cell count level 6.65 mean?

📅 Medical Review Date: September 12, 2025

Your RBC level of 6.65 is a High RBC level.

If you are a male and your RBC is in between 4.5 mil/uL and 5.5 mil/uL, or if you are a female and your RBC is in between 5 mil/uL and 6 mil/uL then you need not worry as 4.5-5.5 mil/uL is the normal range for men and 5-6 mil/uL is the normal range for women. But if your RBC is lesser or greater than the above values, then there may be some problem in your body.

Important - Scroll to the end of this article to see how our patients managed their high RBC levels

The normal RBC range for men is :4.5 - 5.5 mil/uL

**Ideal values of RBC depending on age (male) :**
Age	Ideal RBC value
<5 years	4.799
5-10 years	5.118
10-15 years	5.458
15-20 years	5.434
20-25 years	5.41
25-30 years	5.386
30-35 years	5.362
35-40 years	5.339
40-45 years	5.315
45-50 years	5.291
50-55 years	5.268
55-60 years	5.244
60-70 years	5.221
70-80 years	5.198
80-90 years	5.175
90-100 years	5.152
>100 years	5.495

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our RBC experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides RBC, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

Important - Read more questions about high RBC levels after this video message

A video message on the treatment of your high RBC level

If you want your blood test report to be interpreted by RBC specialist, you can upload your report. Our RBC expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours.Upload blood test report now

Important - At the end of this article read how our patients treated their high RBC levels

Some examples of conditions that increase or decrease RBC levels include:

Sudden (acute) or chronic bleeding from the digestive tract
Kidney failuresevere and chronic kidney diseases lead to decreased production of erythropoietin
Bone marrow damage
Conditions that cause red blood cells to be destroyed, such as hemolytic anemia caused by autoimmunity or defects in the red cell itself
Chronic bleeding from the digestive tract

Receive world-class medical opinion about your high RBC levels over email.Upload blood test report now

Important - At the end of this article read how our patients treated their high RBC levels

Also Read :How our patients treated their high rbc?

Normal range of RBC found among women :5-6 mil/uL

**Ideal values of RBC depending on age (female) :**
Age	Ideal RBC value
<5 years	5.342
5-10 years	5.708
10-15 years	5.681
15-20 years	5.654
20-25 years	5.627
25-30 years	5.6
30-35 years	5.984
35-40 years	5.956
40-45 years	5.928
45-50 years	5.9
50-55 years	5.872
55-60 years	5.844
60-70 years	5.816
70-80 years	5.788
80-90 years	5.76
90-100 years	5.733
>100 years	5.706

Upload your blood test report

If you take a RBC blood test and the results are not in the normal range (4.5-5.5 mil/uL), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

Important :How our patients treated their high rbc?

This page was viewed the most from these cities in the last 30 days:

Karmala Taluka
Jillye-myeon
Gursian Piran
Générac, Gironde
Karaga, Ghana
Jalazone
Kultali
Jhajha
Lantillac
Lesme
Le Poiré-sur-Velluire
Holeum
Le Rheu
Gorreto
Hautes-Pyrénées
Kadamakkudy
Gilon
Jonval
Lafitte, Tarn-et-Garonne
La Neuveville-sous-Montfort
La Chapelle-du-Lou
Gondikuppi
Kongad-I
Lauco
Halamish
Kopharad
Gehée
Ibigawa, Gifu
Garkha (Vidhan Sabha constituency)
Kagadal
Laméac
Guiche, Pyrénées-Atlantiques
Kfar Haroeh
Guihulngan
Jawad, India
Le Travet
Gelles
Khajuraho Hanuman inscription
Kathar, Punjab
Gopalpur, Himachal Pradesh
Lesja
Khan Mahi
Ghumarwin
Huocheng County
Génicourt
Grésy-sur-Aix
Karnataka ethnic groups
Landry, Savoie
Lanchy
Kandi, Murshidabad
Konnur
Hautecourt-Romanèche
Itoi (Hitui)
Leugny, Vienne
Kurud
Lavernhe
Kota, Bilaspur
Hadiabad (Phagwara)
Le Mesnil-Tôve
Germigny, Marne
Giffaumont-Champaubert
Kanam (Kerala)
Kanwari
John H. Boylan State Airport
Kharupetia
Gwahae-dong
Hegeney
Jorge Island
L'Étang-Bertrand
Glandage
Les Hayes
Kethanakonda
Karicode
La Pommeraye, Calvados
Karanja Lad
Hariharpara (Vidhan Sabha constituency)
Le Grand-Lemps
Hereheretue
Karattupalayam
Hinges, Pas-de-Calais
Le Rousset-Marizy
Hebbal, Mysore
Khaira Mushtarka
Les Plans, Hérault
Le Massegros
Lavegahau
Kaiwaka
Laval-Atger
Jandaha (Vidhan Sabha constituency)
Levittown, Pennsylvania
Gissey-le-Vieil
Les Cresnays
Govindghat
Kangrali (KH)
Karupalli
Kashal (village)
Katchal Island
History of the Cayman Islands
Lamotte-Beuvron
Lascaux, Corrèze
La Boissière-École
Karuthapillaiyur
Lantenay, Côte-d'Or
Gulou District, Fuzhou
Givry-en-Argonne
Igney, Vosges
Gohawar
L'Aquila
Janephal
Kabi Longstok
Isle-Saint-Georges
Hénouville
Kawatana, Nagasaki
Huilong, Hebei
Khmara Island
Lapeyrouse-Mornay
Léogeats
Kela Alon
Huzurnagar
Lalgudi
Killi Gudha
Juigné-sur-Sarthe
Lassicourt
Lalœuf
Hengwiller
La Folletière-Abenon
Havstein Island
Lauterique
Leskov Island (Antarctica)
Huclier
Heicheng, Ningxia
Lamothe-Cumont
La Chapelle-aux-Filtzméens
Hassan district
Kullu
Hanskhali (community development block)
Kankwadi
Kanampalli
Geography of Kyrgyzstan
La Ferrière-aux-Étangs
Hauts-de-Seine
Godewaersvelde
Ghaziabad, Uttar Pradesh
Le François
Lansac, Gironde
Islampur subdivision
Jeonnong-dong
His, Haute-Garonne
Grosbois-lès-Tichey
Kittamaqundi

How the RBC Test Is Done :

When your doctor orders a RBC test, it involves a straightforward blood draw to measure your RBC levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your RBC test results are usually available within a few hours.