Anemia can sometimes be inherited, but it depends on the type. Most anemia cases are caused by iron deficiency, blood loss, or other acquired factors. However, some forms are genetic and can be passed from parents to children through gene mutations. In this blog, we will explain the kinds of anemias that are passed on to generations.
Types of Inherited Anemia
Here are some types of inherited anemias:
- Fanconi Anemia
Fanconi anemia is a rare genetic condition. It usually occurs when both parents pass down a faulty gene, a pattern called autosomal recessive inheritance. This disorder affects the bone marrow, which produces blood cells, leading to anemia. Children with Fanconi anemia may also face other health problems, including slower growth and an increased risk of certain cancers. - Sickle Cell Anemia
Sickle cell anemia is a more widely known inherited anemia. In this condition, red blood cells become crescent-shaped instead of round. These abnormal cells die faster, causing a shortage of healthy red blood cells. Sickle cell anemia is inherited from parents and is more common among African American populations. It can cause fatigue, pain episodes, and an increased risk of infections. - Thalassemias
Thalassemias are a group of inherited blood disorders that reduce the body’s ability to make normal hemoglobin. With less hemoglobin, red blood cells are weaker and fewer in number, resulting in anemia. Thalassemias are more common in people from Southeast Asia, the Mediterranean, Africa, and India. Depending on severity, treatment may include regular blood transfusions and medications. - Hereditary Spherocytosis
Hereditary spherocytosis is a condition in which red blood cells are rounder and more fragile than normal. These fragile cells are destroyed faster by the spleen, leading to anemia. People with this condition may experience fatigue, jaundice, and an enlarged spleen. - Iron-Refractory Iron Deficiency Anemia (IRIDA)
IRIDA is a rare genetic disorder caused by mutations in the TMPRSS6 gene. This gene helps regulate how the body absorbs and uses iron. People with IRIDA often have anemia that does not respond well to iron supplements, even if they take them regularly. Early diagnosis is important for proper management.
How Inherited Anemias Differ
Inherited anemias usually appear at birth or during early childhood. Unlike iron deficiency anemia caused by poor diet or blood loss, genetic anemias involve problems with hemoglobin, red blood cell structure, or iron metabolism. These differences mean inherited anemia often requires specialized tests and treatment, rather than simple dietary changes.
Signs and Symptoms to Watch For
- Persistent fatigue or weakness
- Pale or yellowish skin
- Slow growth or delayed development in children
- Pain episodes, especially in sickle cell anemia
- Frequent infections in certain types of inherited anemia
Diagnosis and Medical Care
Doctors may diagnose inherited anemia with:
- Blood tests to check red blood cells and hemoglobin levels
- Genetic tests to confirm specific mutations
- Specialized treatment, which may include medications, supplements, or blood transfusions
Final Word
Some types of anemia are inherited due to genetic defects, while other types might be caused by dietary deficiencies or other acquired factors. Inherited anemia affects how red blood cells are made or how the body handles iron, often requiring specialized care.
If you see signs of anemia, see expert doctors at PCP For Life for proper diagnosis, whether it is inherited or not. Call us at (281) 968-4096 to book an appointment.
