###Human: Does polycythemia occur due to smoking? ###Assistant: Hello, Welcome to the icliniq.com. You have polycythemia. It can be primary or secondary polycythemia. The primary polycythemia is the cancer of bone marrow, which means myeloproliferative neoplasm. However your total WBC count and platelet count within range. So the chance of primary polycythemia less. You have an excess smoking history. Thus smoking can lead to secondary polycythemia, which is a pure benign condition. Smoking can decrease oxygen level in blood and so compensatorily more red blood cells produced. You have to stop smoking to cure your secondary polycythemia. If you stop smoking than gradually your CBC (complete blood count) will be normal. Drink lots of water like two to three liters per day to help in your polycythemia. You may need not to use aspirin as per my opinion. I hope I have answered your question. Let me know if I can assist you further.