Sometimes, diseases or infections can cause low white blood cell counts. Increasing white blood cells involves treating the underlying cause, diet, medications, and supplementing vitamins. White blood ...

A high red blood cell count can occur for many reasons, including excessive cell production, changes in blood volume, or underlying medical conditions. Sometimes, the cause is unknown. Erythrocytes, ...

Red blood cells transport oxygen throughout your body, including to vital organs and tissues. They also help your body get rid of carbon dioxide. Too little or too many red blood cells may be ...