Can virus cause high hemoglobin

Viruses typically do not cause high hemoglobin levels directly; rather, they can lead to dehydration or other conditions that might temporarily elevate hemoglobin concentration. In some cases, chronic viral infections may stimulate erythropoiesis (red blood cell production) due to hypoxia or inflammation, potentially resulting in higher hemoglobin levels. However, this is not a common response, and other factors should be considered in evaluating elevated hemoglobin, such as underlying health conditions or environmental factors.