Elevated levels of lymphocytes in the blood in adults and children - causes, treatment

The norm of lymphocytes in the blood. What level is elevated?

The norm of lymphocytes in the blood

There are generally accepted norms of blood lymphocyte content, the deviation from which is not considered normal, and require additional diagnosis.

In adults

The relative concentration of lymphocytes in blood in this population category is considered to be within the range of 20-34 percent. In absolute values ​​(units), the variation frames are from 1 to 4.5X10⁹ / liter.

In children,

In children, the content of such cellular elements varies very widely and primarily depends on age.

  1. Up to one year - from 55 to 75 percent or 4-10,5X10⁹ / l.
  2. From year to four years - from 45 to 65 percent or 2-8X10⁹ / l.
  3. From four to six years - from 35 to 55 percent or 1.5-7X10⁹ / l.
  4. From six to ten years - from 30 to 50 percent or 1,5-6,5X10⁹ / l.
  5. From ten to 21 years - from 30 to 45 percent or 1-4,8X10⁹ / l.

As can be seen from the above-mentioned inverse arithmetic progression, with increasing age, the relative and absolute level of lymphocytes gradually decreases.

What does this mean?

In the medical environment, the level of lymphocytes increased with respect to the norms, is called lymphocytosis. This condition is not a disease - it is a protective reaction of the body and an indicator of developing pathological processes. In this case, both absolute indications of the content of the base cell element in the blood and its relative parameter are expressed, expressed as a percentage of the ratio of the basic immune map of all elements of the plasma.

The raised level of lymphocytes can be caused not only by diseases, but also by physiological features - so in women during the menstrual cycle, tests can give unexpected results, and for a number of people with immune system of a reactive type, even the slightest failure in the body's work, like a common cold, often gives a high concentration of this type of cells.

Causes of increased lymphocytes

Below, typical causes of elevated levels of lymphocytes are indicated.

In adults

  1. During the menstrual cycle of women - the physiological cause of the increase just before menstruation.
  2. The "reactive" type of immunity is a physiological cause in the absence of serious diseases, an extremely strong immunological response to any failure in the body or the forced operation of a number of organs.
  3. Prolonged fasting.
  4. Viral diseases of the liver with an increase in the last and spleen.
  5. Tuberculosis of any type, even externally asymptomatic.
  6. A variety of bacterial infections, including syphilis, brucellosis.
  7. Infectious mononucleosis.
  8. Allergic manifestations.
  9. Hypertrophic function of the thyroid gland.
  10. Lymphocytosis of smokers and alcohol addicts, developing against a background of stress.
  11. Pathogenic autoimmune processes, including rheumatoid arthritis, systemic lupus erythematosus, scleroderma, dermatomyositis.
  12. Lymphoid leukemia of a chronic benign type.
  13. Progressive lymphosarcomas.
  14. Direct poisoning by a number of chemicals, in particular arsenic, chlorine, lead.
  15. Crohn's disease.
  16. Multiple myeloma.
  17. Endocrine diseases.
  18. Adverse reactions to a number of medications.
  19. Neurasthenia wide spectrum.
  20. The turning point of acute diseases with the start of the recovery period, as well as the transition from relapse to remission of chronic forms of illness.


  1. Anemia, especially acute shortage of vitamin B12.
  2. Classical infectious diseases, in particular rubella, measles, encephalitis, chicken pox, whooping cough, smallpox, mumps, malaria.
  3. Malignant tumors and oncology.
  4. Lymphocytosis is an infectious type, it is Smith's disease.
  5. Bronchial asthma and other types of pulmonary diseases.
  6. Endocrinological problems.
  7. Physiological lymphocytosis in children under four years of age in the absence of manifestations of other diseases and normal state of health.

Treatment of an increased level of lymphocytes

Level of lymphocytes in the blood - treatment

Because an elevated level of lymphocytes is not a disease, there is no specific treatment for this condition. In the absence of clear symptoms of a specific disease, in addition to the results of laboratory tests, the specialist can refer the patient to X-ray, ultrasound, CT / MRI, to assign a histological / cytological analysis, etc.

In adults and children, specific therapy is prescribed only after receivingaccurate diagnosis. In the overwhelming majority of cases, the specialist prescribes antiviral agents, antibiotics, antipyretic drugs, anti-allergenic and anti-inflammatory drugs, in some cases - corticosteroids, chemotherapy, bone marrow transplantation and other necessary measures developed individually based on the patient's current condition, severity of the disease and other parameters.

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