What is leukocytosis?

Generally, leukocytosis, medically termed as elevated white blood cell count, refers to a condition in which the number of white blood cells in peripheral blood exceeds the normal range. A detailed analysis is as follows:

Leukocytosis is not an independent disease but rather an abnormal state characterized by a higher-than-normal level of white blood cells in the bloodstream. The causes are mainly divided into two categories: physiological and pathological. Physiological factors typically involve temporary bodily stress responses, such as intense physical exercise, strong emotional fluctuations, or the second and third trimesters of pregnancy. During these periods, the bone marrow briefly increases white blood cell production, which represents a normal regulatory function of the body. Pathological factors include bacterial infections—such as pneumonia or tonsillitis—that activate the immune system, prompting the bone marrow to produce large numbers of white blood cells to combat pathogens. Additionally, hematologic disorders, severe tissue injury or inflammation, and certain medications can also lead to abnormal increases in white blood cells. In essence, this reflects an imbalance in bodily functions or an underlying pathological condition.

Upon detecting abnormal white blood cell levels, it's important to maintain a regular daily routine, avoid staying up late and excessive fatigue, so as to keep the immune system stable. Diet-wise, focus on light yet nutritious meals, increase intake of protein- and vitamin-rich foods, and reduce consumption of greasy and spicy foods. Pay attention to subtle changes in the body, such as persistent fever, fatigue, or unexplained pain. Regular blood tests should be conducted to monitor fluctuations in blood counts. If any discomfort symptoms occur, seek medical evaluation promptly to identify the underlying cause.