Reading Hemoglobin Reports
Last reviewed: February 16, 2026
Understanding hemoglobin test results, what normal ranges mean, and how to interpret your blood test reports.
Reading Hemoglobin Reports
Understanding your hemoglobin test results can help you better understand your health and work with your healthcare provider to address any concerns. This guide explains what hemoglobin levels mean and how to interpret your reports.
What It Means
Hemoglobin is a protein in red blood cells that carries oxygen from your lungs to the rest of your body. Hemoglobin levels are measured as part of a complete blood count (CBC) and can indicate whether you have anemia or other blood-related conditions.
Normal Hemoglobin Ranges
Normal hemoglobin levels vary by age, sex, and other factors:
For Women
- Non-pregnant women: 12.0 to 15.5 grams per deciliter (g/dL)
- Pregnant women: May be slightly lower, typically 11.0 g/dL or higher
- Postmenopausal women: Similar to non-pregnant ranges
Important Notes
- Ranges can vary slightly between laboratories
- Your healthcare provider will interpret results in context
- Individual factors (altitude, smoking) can affect levels
Understanding Your Results
Hemoglobin (Hb or Hgb)
- Normal: Within the reference range for your age and sex
- Low: Below the normal range (may indicate anemia)
- High: Above the normal range (less common, may indicate other conditions)
Related Test Values
Your report may also include:
- Hematocrit (Hct): Percentage of red blood cells in your blood
- Mean corpuscular volume (MCV): Average size of red blood cells
- Ferritin: Iron stores in your body
- Transferrin saturation: How much iron is bound to transferrin
What Is Normal
It's normal to:
- Have slight variations in hemoglobin levels
- See different results at different times
- Have levels that fluctuate within the normal range
- Need periodic monitoring if you have risk factors
What Is Not Normal
You should discuss results with your healthcare provider if:
- Your hemoglobin is below the normal range
- Your levels have changed significantly
- You're experiencing symptoms of anemia
- You have concerns about your results
When Hemoglobin Is Low
Low hemoglobin (anemia) can indicate:
- Iron deficiency anemia: Most common type
- Other nutritional deficiencies: B12, folate
- Chronic blood loss: Heavy periods, gastrointestinal issues
- Other medical conditions: Various causes
Symptoms of Low Hemoglobin
- Fatigue
- Weakness
- Pale skin
- Shortness of breath
- Dizziness
- Cold hands and feet
When Hemoglobin Is High
High hemoglobin is less common but can indicate:
- Dehydration
- Living at high altitude
- Smoking
- Certain medical conditions
- Polycythemia
When to See a Doctor
Consult your healthcare provider if:
- Your hemoglobin is outside the normal range
- You're experiencing symptoms of anemia
- You have questions about your results
- You want to understand what your levels mean
- You need guidance on improving your levels
Improving Hemoglobin Levels
If your hemoglobin is low, your healthcare provider may recommend:
Dietary Changes
- Increase iron-rich foods
- Include vitamin C to enhance iron absorption
- Eat a balanced diet
Supplements
- Iron supplements (if iron deficiency)
- Other supplements as needed (B12, folate)
- Take as directed by your healthcare provider
Addressing Underlying Causes
- Treat heavy menstrual bleeding
- Address gastrointestinal issues
- Manage other medical conditions
Monitoring
Your healthcare provider may recommend:
- Follow-up blood tests
- Regular monitoring if you have risk factors
- Tracking changes over time
- Adjusting treatment as needed
Questions to Ask Your Healthcare Provider
- What do my results mean?
- Are my levels concerning?
- What might be causing my levels?
- What should I do to improve them?
- When should I be retested?
- Do I need supplements or other treatment?
Understanding Test Reports
When reading your report:
- Look for the reference range (normal values)
- Compare your value to the reference range
- Note any values marked as abnormal
- Review all related test values
- Discuss results with your healthcare provider
Important Reminders
- Test results should be interpreted by healthcare professionals
- Context matters (age, sex, pregnancy status, etc.)
- One test doesn't tell the whole story
- Trends over time are often more meaningful than single values
- Always discuss concerns with your healthcare provider
Remember, understanding your hemoglobin levels is just one piece of your overall health picture. Work with your healthcare provider to interpret your results and develop a plan that's right for your individual needs.