thalassemia minor

pathology

Also known as: heterozygous beta-thalassemia

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July 14, 2026

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Thalassemia minor is a mild form of thalassemia, a group of blood disorders characterized by a deficiency of hemoglobin, the protein that transports oxygen. It is associated with a heterozygous condition for the gene involved, meaning an individual inherits one affected gene and one normal gene.12

People with thalassemia minor typically experience slight or no anemia and have a normal life expectancy. The condition is more common in individuals with ancestry from the Mediterranean, the Middle East, and southern Asia. It is believed that carrying the thalassemia gene may offer some protection against malaria in those who are heterozygous for it.2

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blood disease
Thalassemia and hemoglobinopathies
…mild form of the disease, thalassemia minor, there is usually only slight or no anemia, and life expectancy is normal. Thalassemia major (Cooley anemia) is characterized by severe anemia, enlargement of the spleen, and body deformities associated with expansion of the bone marrow. The latter presumably represents a response to…
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…mild form of the disease, thalassemia minor, there is usually only slight or no anemia, and life expectancy is normal. Thalassemia major (Cooley anemia) is characterized by severe anemia, enlargement of the spleen, and body deformities associated with expansion of the bone marrow. The latter presumably represents a response to…
Read More

thalassemia
Clinical characteristics of thalassemia
…mild form of the disease, thalassemia minor (heterozygous β-thalassemia), there is usually only slight or no anemia, and life expectancy is normal. Occasionally, complications occur involving slight enlargement of the spleen. Thalassemia major (homozygous β-thalassemia, or Cooley anemia) is characterized by severe anemia, enlargement of the spleen, and body deformities…
Read More
…mild form of the disease, thalassemia minor (heterozygous β-thalassemia), there is usually only slight or no anemia, and life expectancy is normal. Occasionally, complications occur involving slight enlargement of the spleen. Thalassemia major (homozygous β-thalassemia, or Cooley anemia) is characterized by severe anemia, enlargement of the spleen, and body deformities…
Read More