There are many causes of non-cancerous blood disorders that can include:
Inadequate consumption or absorption of various vitamins and minerals can affect your body’s ability to manufacture red blood cells.
Many chronic illnesses can affect your body’s ability to manufacture an adequate supply of blood cells. Some blood disorders that result from other medical conditions include:
Cancer treatment, especially chemotherapy and radiation, can also temporarily decrease the number of blood cells in circulation. During treatment, your doctors will monitor your blood counts weekly to ensure that they do not become dangerously low—if they do, you may require a blood transfusion or other therapies before you can continue treatment.
Some blood disorders are the result of genetic traits that are passed from generation to generation. The effects can range from mild to severe.