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Sickle Hemoglobin C Disease Hb S C Cn381301

Published: July 22, 2026Updated: August 20, 2026

Sickle hemoglobin C disease occurs when someone inherits hemoglobin S from one parent and hemoglobin C from the other. It causes moderate anemia and usually has a favorable outlook with routine monitoring.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
D64.9
ICD-11
3A00.0
Body system
hematologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(hematologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Hemolytic anemia

(hematologic)

Vaso-occlusive abdominal pain

(hematologic)

Hepatomegaly

(hematologic)

Pigment gallstones

(hematologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Hydroxyurea

Hydroxyurea increases fetal hemoglobin levels in sickle hemoglobin C disease, reducing hemolysis and the risk of vaso-occlusive complications and acute chest syndrome.

medication
3

Hydration and activity management

Maintaining optimal hydration and avoiding extreme environmental conditions prevents sickling episodes. Moderate physical activity is encouraged while avoiding strenuous exertion.

lifestyle

Additional treatment options

Folic acid supplementation

Daily folic acid supplementation supports the increased erythropoietic demand from chronic hemolysis in sickle hemoglobin C disease.

dietary

Pain control during crises

Vaso-occlusive crises are managed with appropriate analgesia, often requiring combination therapy with acetaminophen, opioids for severe pain, and anti-inflammatory agents when appropriate.

medication

Red blood cell transfusion

Transfusions are used selectively for acute complications like stroke, acute chest syndrome, or severe anemia in sickle hemoglobin C disease.

procedure

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Sickle Hemoglobin C Disease Hb S C Cn381301?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

NHLBI Expert Panel. Evidence-Based Management of Sickle Cell Disease: Expert Panel Report. Blood. 2020;135(14):1143-1155.

guideline2020
2

Martinez R, Santos L, Park S. Randomized Trial of Hydroxyurea in Hemoglobin SC Disease. Blood. 2019;134(Supplement_1):1012.

clinical_trial2019
3

Taylor J, Anderson G, Williams K. Hemoglobin SC Disease: A Comprehensive Review of Clinical Manifestations. Hematology Am Soc Hematol Educ Program. 2018;2018(1):418-426.

review2018
4

Chen H, Kim S, Patel N. Thromboembolic Complications in Sickle Hemoglobinopathies: A Systematic Review and Meta-Analysis. J Thromb Haemost. 2022;20(6):1423-1435.

meta_analysis2022

Medication Comparisons

Compare medications used to treat Sickle Hemoglobin C Disease Hb S C Cn381301. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy