Common diseases with high red and white blood cells are myeloproliferative disorders, bacterial infections, and hemoconcentration. The causes are different and should be treated in a timely manner. 1. Myeloproliferative diseases: patients with myeloproliferative diseases are due to abnormal proliferation of hematopoietic stem cells, resulting in high white blood cells and red blood cells; they can be treated with oral hydroxyurea or subcutaneous injection of interferon; in addition to the application of hydroxyurea or interferon, bleeder therapy or erythrocyte monoclonal harvesting can be used for true erythrocytosis. 2. Bacterial infection: Antibacterial and anti-inflammatory drugs can be used, including levofloxacin and cephalosporin. 3. Blood concentration: the human body in the state of dehydration will cause blood concentration, mostly seen in diarrhea, vomiting and other conditions, followed by the emergence of red and white blood cells are high, commonly caused by the patient after a long time of fasting before blood collection. Usually should drink more water, eat more vegetables and fruits, do not eat spicy food, after a period of adjustment, can return to normal; if the effect is not very obvious, please go to the hospital in time. If there is an increase in the number of white blood cells and red blood cells, you should consult a doctor in time and be treated under the guidance of a doctor.