White Blood Cell Count
What is WBC in blood tests?
WBC Measurement
Low: Below 4 * 10^9/L
High: Above 11 * 10^9/L
About White Blood Cell Count
Measures the number of white blood cells in the blood, indicating immune function and infection.
The reasons for low WBC
Low WBC (leukopenia) can result from bone marrow suppression, autoimmune diseases, viral infections, chronic illnesses, chemotherapy, radiation therapy, malnutrition, or certain medications. It may also indicate severe infections where WBCs are rapidly consumed or a genetic disorder affecting immune cell production. To increase WBC count, improving nutrition (zinc, vitamin C, and folate-rich foods), managing stress, reducing exposure to infections, and, in some cases, medication (such as growth factors) can help.
The reasons for elevated WBC
Elevated WBC (leukocytosis) is typically due to infections, inflammation, stress, corticosteroid use, leukemia, tissue damage, or smoking. Chronic conditions such as autoimmune disorders and certain cancers can also elevate WBC counts. To reduce high WBC levels, addressing the underlying infection or inflammation, managing stress, quitting smoking, and maintaining a healthy lifestyle with balanced nutrition and regular exercise can help normalize levels.
Is it bad too have too high/low WBC?
Low WBC increases the risk of infections and weakens immune response. If severe, it can lead to life-threatening infections, slow wound healing, and poor disease resistance. Prolonged leukopenia may require medical intervention to prevent complications.
High WBC can indicate chronic inflammation or an underlying infection. Persistent elevations may signal blood disorders such as leukemia. In some cases, excessive WBCs can cause blood thickening and circulation problems.