Why is my blood count high?

Several factors can cause a high blood count.

1. Dehydration: When you're dehydrated, your blood volume decreases, which can cause your red blood cell concentration to increase.

2. Exercise: Exercise can also temporarily increase your blood count, especially if you're doing intense or prolonged activity.

3. Altitude: Living or traveling at high altitudes can also increase your blood count, as your body produces more red blood cells to carry oxygen.

4. Smoking: Smoking can increase your blood count, as nicotine causes the release of hormones that can stimulate red blood cell production.

5. Certain medications: Some medications, such as corticosteroids and erythropoietin, can increase your blood count.

6. Medical conditions: Certain medical conditions, such as polycythemia vera, leukemia, and kidney disease, can also cause a high blood count.

If you're concerned about your blood count, talk to your doctor. They can order tests to determine the cause of the increase and recommend treatment, if necessary.