Draft — awaiting clinical review

Sickle Cell Disease

In plain words: Red blood cells can become stiff and curved, blocking blood flow and causing pain and other problems. Ongoing care from a hematology team helps.

Your genetics may influence your health, but they do not determine your worth. Understanding your body creates opportunities for informed care—not blame.

Designed to Heal provides general educational information and personal wellness tools. It does not diagnose genetic conditions, interpret genetic tests, or replace qualified medical care. Genetic disorders may require specialized diets, medication, monitoring, or other medical treatments. Consult a qualified healthcare professional before changing your treatment, nutrition, or exercise plan.

Emergency? Call 911 (U.S.) or your local emergency number. For a mental health crisis, call or text 988. Emergency Help

We do not diagnose, interpret genetic tests or calculate risk. For testing or family-planning questions, ask your clinician about a certified genetic counselor.

1. Overview

Sickle cell disease is a group of inherited red blood cell disorders. Sickled cells can block small blood vessels and break down early, causing anemia, pain crises and organ complications.

2. Genetic cause and inheritance

Caused by changes in the HBB gene. It is autosomal recessive. People with one changed copy have sickle cell trait, which is usually not a disease.

3. Symptoms and complications

Episodes of pain (pain crises)
Anemia and tiredness
Swelling of hands and feet
Frequent infections
Possible complications: stroke, acute chest syndrome, organ damage, vision problems

4. How clinicians diagnose it

Found by newborn screening in the U.S., or by blood tests later in life. A hematologist confirms the type.

5. Established medical treatment

Regular care with a hematology team
Medications such as hydroxyurea and others your team may prescribe
Blood transfusions for some people
Bone marrow (stem cell) transplant and newer gene therapies for some people
Vaccines and infection prevention

6. Nutrition considerations

Staying well hydrated is commonly emphasized. Ask your team about folic acid and any nutritional needs — do not start supplements without guidance.

Nutrition, movement and other supportive practices may support overall health, but they cannot change the inherited genetic variant.

7. Activity considerations

Many people can be active. Rest often, hydrate well and avoid overexertion. Ask your team before high-altitude, very intense or endurance activities.

8. Safety precautions

Dehydration, extreme heat or cold, and overexertion can trigger crises
Fever is an emergency — seek care right away
Chest pain, trouble breathing, sudden weakness, numbness or trouble speaking need emergency care (call 911)

9. Questions to ask your clinician

What should my pain plan at home and in the ER look like?
What fever temperature means I should go in?
Am I a candidate for hydroxyurea, transplant or gene therapy?

10. References

Last updated October 8, 2026