Some types of genetic diseases are Tay-Sachs disease, sickle cell disease and cystic fibrosis, according to Mayo Clinic and the National Heart, Lung and Blood Institute. Huntington's chorea is another genetic disease, notes the National Institute of Neurological Disorders and Stroke.Continue Reading
Tay-Sachs disease is a genetic disorder caused when an enzyme that breaks down fatty substances is missing, says Mayo Clinic. Because of this, fat accumulates in the brain and begins to destroy the nerve cells. Eventually, bodily systems such as sight and hearing decline. Tay-Sachs disease is incurable and fatal.
Sickle cell anemia is caused when the red blood cells take on an odd sickle shape in the bloodstream, says the National Heart, Lung and Blood Institute. The protein hemoglobin in these deformed blood cells is also abnormal. Because of the blood cell's odd shape, it does not flow properly through the circulatory system and sticks to the lining of the blood vessels. This blocks normal cells and starves areas of the body of oxygen. This causes episodes of extreme pain called crises.
Cystic fibrosis causes mucus that would otherwise lubricate the internal organs to become thick and sticky, says Mayo Clinic. Because of this, organs such as the lungs and the digestive system, especially the pancreas, are damaged.
Huntington's chorea is another genetic disease that destroys neurons in certain areas of the brain, notes the NINDS.Learn more about Conditions & Diseases