what does it mean when you have low wbc?
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A low white blood cell count usually is caused by: Viral infections that temporarily disrupt the work of bone marrow. Certain disorders present at birth (congenital) that involve diminished bone marrow function. Cancer or other diseases that damage bone marrow.
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A low T cell count is more common than a high T cell count. Low T cell counts usually indicate problems with your immune system or lymph nodes. Low T cell counts may be due to: viral infections, such as influenza. aging.
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Normally the total WBC count for an adult ranges from 5,000 to 10,000/mm 3. Leukocytosis (WBC > 10,000/mm 3) can indicate infection, inflammation (possibly from allergies), tissue damage or burns, dehydration, thyroid storm, leukemia, stress, or steroid use.
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Background: In a patient with severe sepsis, we sometimes observe immediate decrease of the counts of white blood cells (WBCs) and neutrophils, which is known as an indicator for poor prognosis. We observed marked decrease of white blood cells and neutrophils on blood examination and interesting findings on dynamic CT.
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How many white blood cells (WBCs) someone has varies, but the normal range is usually between 4,000 and 11,000 per microliter of blood. A blood test that shows a WBC count of less than 4,000 per microliter (some labs say less than 4,500) could mean your body may not be able to fight infection the way it should.
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A lower than normal hematocrit can indicate: An insufficient supply of healthy red blood cells (anemia) A large number of white blood cells due to long-term illness, infection or a white blood cell disorder such as leukemia or lymphoma.
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Leukocytosis (WBC > 10,000/mm 3) can indicate infection, inflammation (possibly from allergies), tissue damage or burns, dehydration, thyroid storm, leukemia, stress, or steroid use. The degree of leukocytosis depends on the severity of the disorder, the patient's age and general health, and bone marrow health.
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A high WBC count likely indicates that an infection is present somewhere in the body, while a low number might indicate that an infection or disease—such as HIV or cancer—has slowed the bone marrow's ability to produce new WBCs. Red blood cells (erythrocytes) are responsible for delivering oxygen throughout the body.
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An elevated WBC count in itself is not usually dangerous, but the causes of it can be if left untreated. On average, your body is naturally designed to produce white blood cells when needed and reduce them when you have regained normal health.
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When you don't have enough healthy red blood cells, you have a condition called anemia. This means your blood has lower than normal hemoglobin (Hgb) levels. Hemoglobin is the part of the red blood cell (RBC) that carries oxygen to all the cells in your body. Anemia is a common side effect in patients with cancer.
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Lymphocytopenia, also referred to as lymphopenia, occurs when your lymphocyte count in your bloodstream is lower than normal. Severe or chronic low counts can indicate a possible infection or other signficant illness and should be investigated by your doctor. Lymphocytes are a kind of white blood cell.
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Basophils are white blood cells from the bone marrow that play a role in keeping the immune system functioning correctly. Doctors may order basophil level tests to help diagnose certain health problems. If basophil levels are low, this may be a sign of an allergic reaction or another condition.
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Generally, a count lower than 3,500 white blood cells per microliter of blood is considered a low white blood cell count. But ask your doctor what the normal range is for the laboratory he or she uses.
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A high WBC count may result from an infection or leukemia. A person is at an increased risk of infection if his/her WBC count drops below 1,000 cells per microliter.
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Cancer-related causes of low blood cell counts include: Chemotherapy. Certain chemotherapy drugs can damage your bone marrow — the spongy material found in your bones. Your bone marrow makes blood cells, which grow rapidly, making them very sensitive to the effects of chemotherapy.
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The definition of low white blood cell count varies from one medical practice to another. In general, for adults a count lower than 4,000 white blood cells per microliter of blood is considered a low white blood cell count. For children, that threshold varies with age.
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Leukopenia: A low white blood cell count. A decrease in the production of functional leukocytes (white blood cells) weakens the body's immune defense, which may make you more prone to infections. Thrombocytopenia: A low blood platelet count. Platelets are the blood cells responsible for blood clotting.