Diamond-Blackfan anemia
What is Diamond-Blackfan anemia?
Diamond-Blackfan anemia is a rare inherited blood disorder that affects the bone marrow. The bone marrow is the soft tissue inside your bones that makes blood cells. In this condition, the bone marrow cannot produce enough red blood cells to carry oxygen throughout your body.
This disorder is present from birth, though symptoms may not appear until the first year of life. Diamond-Blackfan anemia affects about 5 to 7 out of every 1 million live births. It is considered a type of pure red cell aplasia, meaning only red blood cell production is affected while white blood cells and platelets remain normal.
People with Diamond-Blackfan anemia need regular monitoring and treatment to manage their condition. Early detection through blood testing allows doctors to track red blood cell levels and adjust treatment as needed. Many patients respond well to medication, while others may require ongoing blood transfusions.
Symptoms
- Pale skin and mucous membranes
- Fatigue and weakness
- Rapid heartbeat
- Shortness of breath
- Irritability in infants
- Poor feeding and slow growth in babies
- Abnormal thumb or face structure in some cases
- Short stature or delayed growth
- Cleft lip or palate in some individuals
Symptoms typically appear within the first year of life, often between 2 months and 6 months of age. Some babies show signs shortly after birth, while others develop symptoms later. The severity of symptoms can vary widely between individuals with this condition.
Concerned about Diamond-Blackfan anemia? Check your levels.
Screen for 1,200+ health conditions
Causes and risk factors
Diamond-Blackfan anemia is caused by genetic mutations that affect how the bone marrow produces red blood cells. About 50% to 65% of cases involve mutations in genes that help make ribosomes, the protein factories inside cells. These genetic changes prevent the bone marrow from making red blood cells properly. The condition can be inherited from a parent or can occur as a new mutation.
In about 40% to 45% of cases, a parent passes the genetic mutation to their child through autosomal dominant inheritance. This means only one copy of the mutated gene is needed to cause the condition. The remaining cases occur spontaneously with no family history. Risk factors include having a parent or sibling with the condition, though many cases happen without any family history.
How it's diagnosed
Diamond-Blackfan anemia is diagnosed through blood tests that measure red blood cell count and other markers. A complete blood count shows severely low RBC levels while white blood cells and platelets remain normal or near normal. Doctors also look at red blood cell size, which is often larger than normal in this condition. Additional blood tests check for elevated fetal hemoglobin and increased adenosine deaminase enzyme activity.
Rite Aid offers regular RBC monitoring through our flagship blood testing panel at over 2,000 Quest Diagnostics locations nationwide. Regular testing helps doctors assess how well treatment is working and whether transfusions are needed. Bone marrow examination and genetic testing may also be performed to confirm the diagnosis and identify specific gene mutations.
Treatment options
- Corticosteroid medications like prednisone to stimulate red blood cell production
- Regular blood transfusions for those who do not respond to steroids
- Iron chelation therapy to remove excess iron from repeated transfusions
- Stem cell or bone marrow transplant in severe cases
- Folate supplementation to support blood cell production
- Regular monitoring of red blood cell counts and iron levels
- Growth hormone therapy if short stature develops
- Avoiding contact sports to prevent injury when blood counts are low
Concerned about Diamond-Blackfan anemia? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
The first signs typically appear between 2 and 6 months of age. Babies may show extreme paleness, tire easily during feeding, and grow more slowly than expected. Some infants also have physical features like abnormal thumbs or facial differences. Parents often notice their baby seems weaker or less active than other infants the same age.
Yes, Diamond-Blackfan anemia shows up clearly in blood tests that measure red blood cell count. An RBC test will reveal severely low red blood cell levels while other blood cell types remain normal. Regular RBC monitoring helps track the condition and evaluate how well treatment is working. Early detection through blood testing allows for faster treatment and better outcomes.
A stem cell or bone marrow transplant is the only current cure for Diamond-Blackfan anemia. However, transplants carry significant risks and are typically reserved for severe cases. Most patients manage the condition successfully with corticosteroid medications or regular blood transfusions. About 70% to 80% of patients respond well to steroid treatment, at least initially.
Transfusion frequency depends on whether the person responds to steroid treatment. Patients who respond to steroids may not need any transfusions or only occasional ones during illness. Those who do not respond to steroids typically need transfusions every 3 to 5 weeks to maintain healthy red blood cell levels. Your doctor will monitor your RBC count to determine the right schedule.
Untreated Diamond-Blackfan anemia leads to severe anemia that prevents organs from getting enough oxygen. This can cause heart problems, delayed growth and development, and life-threatening complications. Children may fail to thrive and experience serious developmental delays. Early diagnosis and consistent treatment are essential for normal growth and quality of life.
Diamond-Blackfan anemia is present from birth and almost always diagnosed in infancy or early childhood. It does not develop later in life. However, some people with mild forms may not be diagnosed until later childhood or even adolescence. Adults with the condition were born with it, even if symptoms were not recognized earlier.
Yes, long-term steroid use can cause side effects including weight gain, mood changes, and increased infection risk. Children may experience slowed growth, weakened bones, and elevated blood sugar. Doctors carefully monitor patients on steroids and use the lowest effective dose. Some patients eventually become resistant to steroids and need alternative treatments like transfusions.
No, Diamond-Blackfan anemia is very different from common types like iron deficiency anemia. It is a genetic bone marrow failure disorder that specifically affects red blood cell production from birth. Unlike nutritional anemias, it cannot be fixed with diet changes or iron supplements. It requires specialized treatment with steroids, transfusions, or transplant.
Many people with Diamond-Blackfan anemia live full and active lives with proper treatment and monitoring. Those who respond well to steroids often have near-normal daily function. Regular blood testing helps ensure treatment stays on track. Some limitations may apply, such as avoiding contact sports or planning around transfusion schedules when needed.
Yes, family members should consider genetic counseling and testing. Since about 45% of cases are inherited, siblings and parents may carry the genetic mutation. Some family members may have very mild symptoms that were never diagnosed. Genetic testing helps families understand their risk and make informed decisions about having children.