Can high white blood cell count cause fever in the body?

Elevated white blood cell count may cause fever in the body. Elevated white blood cells are usually associated with factors such as infection, inflammation, stress response, etc., which may lead to an increase in body temperature. Infection is one of the common causes of elevated white blood cell count. When bacteria or viruses invade the human body, the immune system activates defense mechanisms and increases the number of white blood cells to fight against pathogens. This process may be accompanied by fever symptoms, and an increase in body temperature can help suppress the proliferation of pathogens. Common infections include respiratory tract infections, urinary tract infections, etc., which typically cause an increase in white blood cell count and fever. Inflammatory response may also lead to elevated white blood cells and fever. When tissues are damaged or stimulated, the body produces inflammatory mediators, which stimulate the bone marrow to produce more white blood cells. At the same time, inflammatory mediators act on the thermoregulatory center, causing a fever response. Chronic inflammatory diseases such as rheumatoid arthritis and enteritis often manifest as leukocytosis and low-grade fever.

Certain stress conditions can cause temporary elevation of white blood cells. Under stress conditions such as intense exercise, emotional excitement, or trauma, the level of adrenaline in the body increases, prompting the bone marrow to release more white blood cells into the bloodstream. In this case, a brief low-grade fever may occur, usually returning to normal with the elimination of stress factors. Blood system diseases such as leukemia can also cause abnormal increase in white blood cells. This type of disease leads to dysfunction of bone marrow hematopoietic function, producing a large number of abnormal white blood cells. Due to the dysfunction of these cells, patients are prone to infection and fever, while tumor cells themselves may also release thermogenic substances. The fever in leukemia patients often lasts for a long time and is not easy to subside. Drug reactions are another possible cause. Certain medications such as corticosteroids can stimulate white blood cell production and may also interfere with temperature regulation. After using these drugs, drug fever may occur, manifested as an increase in white blood cell count and body temperature, which usually gradually subsides after discontinuation of the medication. Maintaining sufficient rest and moderate water intake can help alleviate fever symptoms. You can choose easily digestible foods in your diet and avoid spicy and irritating foods. If the fever persists for more than three days or the body temperature exceeds 38.5 degrees Celsius, timely medical examination should be sought. Pay attention to personal hygiene and exercise regularly to improve immunity, but avoid vigorous exercise during fever periods. Monitoring temperature changes and recording fever patterns can help doctors determine the cause.