Question: What is (are) Hemoglobin E disease ?
Answer: Hemoglobin E (HbE) disease is an inherited blood disorder characterized by an abnormal form of hemoglobin, called hemoglobin E. People with this condition have red blood cells that are smaller than normal and have an irregular shape. HbE disease is thought to be a benign condition. It is inherited in an autosomal recessive pattern and is caused by a particular mutation in the HBB gene. The mutation that causes hemoglobin E disease has the highest frequency among people of Southeast Asian heritage (Cambodian, Laotian, Vietnamese and Thai). However, it is also found in people of Chinese, Filipino, Asiatic Indian, and Turkish descent.
Source: GARD

Question: How to diagnose Hemoglobin E disease ?
Answer: How is hemoglobin E disease diagnosed? Many babies are picked up through state newborn screening programs. A diagnosis is usually made by looking at the red blood cells by doing a Mean Corpuscular Volume (MCV) test, which is commonly part of a Complete Blood Count (CBC) test. More specialized tests, such as a hemoglobin electrophoresis and iron studies might be done. These tests indicate whether a person has different types of hemoglobin. Genetic testing of the HBB gene can also be done to confirm a diagnosis.
Source: GARD

Question: What are the treatments for Hemoglobin E disease ?
Answer: How might hemoglobin E disease be treated? Treatment is usually not necessary. Folic acid supplements may be prescribed to help the body produce normal red blood cells and improve symptoms of anemia. People with hemoglobin E disease can expect to lead a normal life.
Source: GARD