Mean Corpuscular Volume (MCV) 105 fL: Is That High?

Bottom line: Mean Corpuscular Volume (MCV) 105 fL — see your doctor to discuss this result.

Ernestas K.
Written by
Clinical research writer specializing in human health, biology, and preventive medicine.
Reviewed against ASH, NIH, Mayo Clinic, CDC guidelines · Last reviewed March 25, 2026
YOUR RESULT
105 fL
High (Macrocytic)

Is Mean Corpuscular Volume (MCV) 105 fL Low, Normal, or High?

Mean Corpuscular Volume (MCV) 105 fL indicates that your red blood cells are larger than what is typically observed. This value might be considered high when compared to general reference ranges. A normal MCV usually falls within a specific window, meaning that 105 fL suggests an increase in the average size of these vital cells. Understanding this single measurement can be a helpful step in a broader health discussion, offering a glimpse into your body's cellular story. It encourages a closer look at what these numbers might reveal about your overall well-being.

Mean Corpuscular Volume (MCV) RangeValues
Very Low (Microcytic)Below 70 fL
Low (Microcytic)70 - 79 fL
Normal (Normocytic)80 - 100 fL
High (Macrocytic)101 - 115 fL
Very High (Macrocytic)116 - 140 fL
Blood cells and Mean Corpuscular Volume (MCV) Red blood cells White blood cells Platelets A complete blood count measures all types of blood cells
Your MCV 105 means different things depending on your other markers
MCV + Hemoglobin
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MCV + Creatinine
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MCV + Fasting Blood Glucose
Blood sugar status interacts with this marker in ways that change the clinical significance of your result
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Hidden Risk of Mean Corpuscular Volume (MCV) 105 fL

Understanding a Mean Corpuscular Volume (MCV) 105 fL result can sometimes feel like uncovering a piece of a much larger puzzle about your health. When red blood cells are larger than typical, it prompts a closer look at how your body is producing and maintaining these essential oxygen carriers. While a single elevated MCV result doesn't automatically mean a serious problem, it can be a valuable signal that your healthcare provider will consider alongside other health factors. It encourages an exploration into various aspects of your health that might influence red blood cell size, helping to connect the dots in your wellness journey. This measurement can point to areas that might benefit from further investigation or attention, acting as a prompt for a more comprehensive review of your body's functions. Elevated red blood cell size might relate to:

What Does a Mean Corpuscular Volume (MCV) Level of 105 fL Mean?

Mean Corpuscular Volume (MCV) 105 fL specifically refers to the average size of your red blood cells. Imagine your red blood cells as tiny delivery trucks that carry oxygen from your lungs to every part of your body. The MCV tells us how big these trucks are, on average. When the MCV is 105 fL, it means these oxygen-carrying cells are, on average, larger than what is considered typical. This increased size doesn't necessarily indicate a problem, but it does prompt your healthcare provider to consider potential reasons for this observation. Several factors can influence red blood cell size. For example, specific vitamin deficiencies, particularly a lack of vitamin B12 or folate, can cause red blood cells to grow larger than usual during their development. These vitamins are crucial for proper cell division. Furthermore, conditions affecting your liver or thyroid can also impact red blood cell production and lead to an elevated MCV. The body’s hydration status and overall metabolic health play a role too. It's like a signal that encourages your doctor to look at the 'bigger picture' of your health, considering your overall symptoms, other blood test results, and your medical history. This comprehensive approach helps to understand why your red blood cell size might be higher than the average, providing clarity on your unique health profile.

Reading about one marker can be misleading.

Your blood test has multiple results that affect each other. MCV 105 alone doesn't tell you the full picture. Your other markers do.

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Based on clinical guidelines · Data never stored

Lifestyle Changes for Mean Corpuscular Volume (MCV) 105 fL

Making conscious lifestyle choices is a powerful way to support your body's overall health and well-being, which in turn can positively influence many bodily functions, including aspects related to your Mean Corpuscular Volume (MCV) 105 fL. While lifestyle changes alone may not directly alter your MCV significantly without addressing underlying causes, they can certainly contribute to a healthier foundation. Think about getting enough restorative sleep each night; quality sleep allows your body to repair and rejuvenate, impacting cellular health across the board. Engaging in regular physical activity, such as brisk walking, swimming, or cycling, helps improve circulation and reduces stress, both of which are beneficial for your body's systems. Managing stress effectively through practices like mindfulness, meditation, or spending time in nature can also have a profound impact on your physiological responses. Additionally, limiting or avoiding excessive alcohol consumption is often recommended, as alcohol can affect various organs, including the liver, which plays a critical role in red blood cell production and health. Staying adequately hydrated by drinking enough water throughout the day supports all cellular functions, including the development and maintenance of healthy blood cells. These practices are not quick fixes, but rather a commitment to a holistic approach to health that empowers your body to function at its best. Discussing these general wellness strategies with a healthcare professional can provide personalized insights into how they fit into your overall health plan.

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Disclaimer: This content is for informational purposes only and is not medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. BloodMarker does not establish a doctor-patient relationship. Terms & Conditions