Lymphocytes in the blood: increased, decreased, normal in women, men, children

Important components of immunity include lymphocytes, which are a separate subgroup of lymphocytes. They are produced in the bone marrow; the main task of the elements is to identify foreign pathogens and formulate an immune system response to them. An increase in the number of lymphocytes is associated with pathologies that need to be determined to select the correct therapy.

Lymphocytes - what are they, what are they?

Lymphocytes are one of the components of white blood cells; a complete blood test for lymphocytes . They play an important role in the formation of immune responses. Their function is to recognize pathogens and mutated own cells. After identifying a foreign object, lymphocytes destroy it in one way or another: phagocytosis, production of special antigens. To destroy their own cells that have degenerated into cancer or have undergone other changes, lymphocytes send a special chemical signal that causes such a cell to start the process of self-destruction. In addition to a general blood test for lymphocytes, a biochemical blood test is performed at the MedArt Medical Center.

There are three types of these cells:

T lymphocytes. They mature in the thymus. They play an important role in the fight against foreign bodies and infections. Some T-lymphocytes perform regulatory functions and are responsible for the duration and strength of the immune response. It is these cells that are affected when infected with HIV.
B lymphocytes. Their main task is to produce antibodies against viruses and other infectious agents. In addition, they are able to retain information about past diseases, thereby creating permanent immunity.
NK – cells. Their main function is to detect and eliminate body cells that have degenerated into malignant ones.

Lymphocytes are formed in the red bone marrow; their young, immature forms are called lymphoblasts. Maturation occurs in several stages, occurring not only in the bone marrow, but also in the lymphoid nodes and other organs of the lymphatic system.

The appearance of an increased number of lymphocytes can serve as a marker of bone marrow pathologies and the development of tumor processes in it. An increase in the level of lymphoblasts is also recorded during prolonged infectious processes. In this case, this serves as a sign of depletion of the body's defenses. The immune system does not have time to prepare a sufficient number of lymphocytes to fight the pathogen, and this becomes the reason for the appearance of a large number of lymphoblasts in the blood.

Features of lymphocytosis

The term indicates disturbances in the functioning of the female body, the activity of the immune system to combat intrusions:

bacteria, viruses;
protozoa, parasites.

Other reasons for an increased concentration of lymphocytes include their damage or death due to:

burn disease;
tissue necrosis;
inflammatory processes;
allergies;
autoimmune diseases;
oncological pathologies.

Cells reach problem areas, but with further progression of the disease they begin to die en masse.

The chronic form of lymphocytosis is the result of diseases of the blood or hematopoietic system, lymphatic department. Taurus do not fully mature and cannot fully perform the functions assigned to them. To normalize the balance, the bone marrow produces even more lymphocytes, but the benefits from the increased work are minimal.

The accumulation of protective cells may be due to problems with their utilization in the spleen. Doctors believe that it is not deviations in tests that are of greatest importance, but the sources of their occurrence. Dysfunction of the immune system leads to the development of chronic infections, autoimmune diseases with attacks on one’s own cells, the formation and further proliferation of atypical structural units.

Indications for analysis

A general blood test for lymphocytes is prescribed if there is a suspicion of an increase or decrease in their number. The analysis can be prescribed for other reasons; it allows you to obtain a lot of valuable data about the state of the blood and the whole body. The main indications include:

Detection of the immune response to the presence of pathogenic microorganisms.
The state of human immunity.
Physical and chemical composition of blood.
Preventive analysis - to detect hidden changes in the blood formula that do not manifest themselves with specific symptoms.

General clinical blood test

It is carried out as part of a general clinical examination of the patient and allows you to learn about the condition of the blood and the body as a whole. The main indicators of this analysis are: hemoglobin, the number of leukocytes (white blood cells), erythrocytes (red blood cells) and platelets (nuclear-free plates of blood responsible for clotting).

Due date and how to prepare

A general blood test is taken in the morning on an empty stomach, often from a finger, less often from a vein. You should not drink or eat 4 hours before the test.

Metrics collected

Now a general blood test is carried out on automatic hematological analyzers, which can simultaneously determine values from 5 to 24 parameters.

The main indicators collected are:

Hemoglobin (HGB - hemoglobin)
- the main component that is involved in the transfer of oxygen in the blood from the lungs to organs and tissues, and carbon dioxide back to the lungs, is the blood pigment of red blood cells.
Red blood cells (RBC - red blood cells)
are red blood cells that carry oxygen in the blood to organs and tissues.
Leukocytes (WBC - white blood cells)
are white blood cells produced in the bone marrow that carry out immune control and protect the body from foreign cells.
Thrombocytes (PLT - platelets)
are nuclear-free platelets of blood responsible for clotting.
Lymphocytes (LYM - lymphocyte)
are cells of the immune system that respond to viruses and microbes.
Monocytes (MON - monocyte)
are large cells of the immune system.
Hematocrit (HCT - hematocrit)
is the volume of red blood cells in the blood.
Blood color index (BI)
, demonstrating the concentration of hemoglobin in red blood cells.
Erythrocyte sedimentation rate
, which, if deviated from the norm, may indicate a pathological condition of the body.
Various erythrocyte, leukocyte and platelet indices
.

Decoding the results: norm and deviation

The normal values of the blood parameters studied in each laboratory are different and depend on the gender, age and condition of the patient. Only a doctor can make a correct interpretation of the blood test results and make a diagnosis, taking into account all aspects of the patient’s health. Below are frequently examined blood parameters, their normal values, and what a deviation from the norm may indicate in the general case, and not in the specific case. To obtain an individual interpretation and diagnosis, you should consult a doctor.

Hemoglobin (HGB - hemoglobin)

Normal hemoglobin level in blood:

Men:

from 12 to 15 years: 120 - 160 g/l;
from 15 to 18 years: 117 - 166 g/l;
from 18 to 45 years: 132 - 173 g/l;
from 45 to 65 years: 131 - 172 g/l;
over 65 years old: 126 - 174 g/l.

Women:

from 12 to 15 years: 115 - 150 g/l;
from 15 to 18 years: 117 - 153 g/l;
from 18 to 45 years: 117 - 155 g/l;
from 45 to 65 years: 117 - 160 g/l;
over 65 years old: 120 - 161 g/l.

Children:

up to 2 weeks: 134 - 198 g/l;
from 2 to 4.3 weeks: 107 - 171 g/l;
from 4.3 to 8.6 weeks: 94 - 130 g/l;
from 8.6 weeks to 4 months: 103 - 141 g/l;
at 4 to 6 months: 111 - 141 g/l;
from 6 to 9 months: 114 - 140 g/l;
from 9 to 1 year: 113 - 141 g/l;
from 1 year to 5 years: 100 - 140 g/l;
from 5 years to 10 years: 115 - 145 g/l;
from 10 to 12 years: 120 - 150 g/l;

Deviation of hemoglobin in the blood from the norm may indicate:

when decreasing by:

overhydration - increased water content in the body due to impaired water-salt metabolism;
anemia - disruption of the oxygen transport function in the body and the development of hypoxia.

when increasing by:

dehydration - loss of water in the body;
polycythemia vera - increased blood viscosity and decreased blood flow;
excessive smoking.

Red blood cells (RBC - red blood cells)

Norm of red blood cells in the blood:

Men:

from 12 - 18 years: 4.5 - 5.3 * 10^12/l;
over 18 years old: 4.0 - 5.0 * 10^12/l.

Women:

from 12 - 18 years: 4.1 - 5.1 * 10^12/l;
over 18 years old: 3.5 - 4.7 * 10^12/l.

Children:

newborn: 3.9 - 5.5 * 10^12/l;
from 1 to 3 days: 4.0 - 6.6 * 10^12/l;
in 1 week: 3.9 - 6.3 * 10^12/l;
in week 2: 3.6 - 6.2 * 10^12/l;
at 1 month: 3.0 - 5.4 * 10^12/l;
in the 2nd month: 2.7 - 4.9 * 10^12/l;
from 3 to 6 months: 3.1 - 4.5 * 10^12/l;
from 6 months to 2 years: 3.7 - 5.3 * 10^12/l;
from 2 to 6 years: 3.9 - 5.3 * 10^12/l;
from 6 to 12 years: 4.0 - 5.2 * 10^12/l.

Normal erythrocyte indices:

MCV
: 80 - 95 fl - average erythrocyte volume;
MCH
: 27 - 31 pg - average hemoglobin content in an individual red blood cell;
MCHC
: 320 - 360 g/l - average hemoglobin concentration in the erythrocyte mass;
RDW
: 11.5% - 14.5% - red blood cell distribution width;
RDW-SD
: 37 - 54 fl - deviation of the distribution of red blood cells by volume;
RDW-CV
: 11.5 - 14.5% (adults), 14.9 - 18.7% (children up to 6 months) and 11.6 - 14.8% (children over 6 months) - deviation of red blood cell size from averages;
P-LCR
: 13 - 43% - large platelet ratio;
ESR
: 10 mm/hour (men), 15 mm/hour (women) - erythrocyte sedimentation rate, deviation of which from the norm may indicate a pathological or inflammatory process in the body.

Deviation of red blood cells from the norm may indicate:

when decreasing by:

anemia;
blood loss;
pregnancy;
overhydration;
decrease in the intensity of red blood cell formation in the bone marrow;
therapy with diuretics;
accelerated destruction of red blood cells.

when increasing by:

burn;
diarrhea;
hydrocele of the renal pelvis;
true polycythemia;
Cushing's syndrome;
neoplasms;
steroid use;
the effect of corticosteroids;
taking diuretics.

Leukocytes (WBC - white blood cells)

Norm of leukocytes in the blood:

Men and women:

from 16 years and older: 4.0 - 9.0 * 10^9/l.

Children:

up to 1 year: 6.0 - 17.5 * 10^9/l;
from 1 year to 2 years: 6.0 - 17.0 * 10^9/l;
from 2 to 4 years: 5.5 - 15.5 * 10^9/l;
from 4 to 6 years: 5.0 - 14.5 * 10^9/l;
from 6 to 10 years: 4.5 - 13.5 * 10^9/l;
from 10 to 16 years: 4.5 - 13.0 * 10^9/l.

Norm of leukocyte indices:

LYM% (LY%)
: 25 - 40% - relative content of lymphocytes;
LYM# (LY#)
: 1.2 - 3.0 * 10^9/l (1.2-3.0 x 10^3/μl) - absolute lymphocyte content;
MXD% (MID%)
: 5 - 10% - the relative content of a mixture of monocytes, eosinophils and basophils;
MXD# (MID#)
: 0.2 - 0.8 * 10^9/l - absolute content of a mixture of monocytes, eosinophils and basophils;
NEUT% (NE%)
: 40% - 75% - relative content of neutrophils;
NEUT# (NE#)
: 2 - 7.5 * 10^9/l - absolute content of neutrophils;
MON% (MO%)
: 4 - 11% - relative content of monocytes;
MON# (MO#)
: 0.1 - 0.6 * 10^9 cells/l - absolute content of monocytes;
EO%
: 1 - 5% - relative content of eosinophils;
EO#
: 0.4 * 109/l - absolute eosinophil content;
BA%
: less than 1% - relative content of basophils;
BA#
: 0 - 0.08 * 10^9/l - absolute content of basophils;
IMM%
: 1 - 5% - relative content of immature granulocytes;
IMM#
: 1.2 - 6.8 * 10^9/l - absolute content of immature granulocytes;
ATL%
: less than 5% - the relative content of atypical lymphocytes;
ATL#
: 0.06 - 0.15 * 10^9/l - absolute content of atypical lymphocytes;
GR% (GRAN%)
: 47 - 72% - relative content of granulocytes;
GR# (GRAN#)
: 1.2 - 6.8 * 10^9/l (1.2 - 6.8 * 10^3/μl) - absolute granulocyte content.

Deviation of leukocytes in the blood from the norm may indicate:

when decreasing by:

typhus;
viral diseases;
bone marrow diseases and damage;
anaphylactic shock;
leukemia;
viral diseases;
radiation sickness;
Addison-Biermer disease;
collagenosis;
myelodysplastic syndromes;
hypersplenism;
myelofibrosis;
plasmacytoma;
taking certain antibiotics and anti-inflammatory drugs;
anemia.

when increasing by:

the presence of inflammatory processes in the body;
sepsis;
purulent processes;
tissue injuries;
myocardial infarction;
infectious diseases;
the presence of malignant neoplasms;
last trimester of pregnancy;
period of feeding the baby with breast milk;
great physical activity.

Thrombocytes (PLT - platelets)

Normal platelet count in blood:

Men, women and children:

all ages - 180 - 320 * 10^9 cells/l.

Normal platelet indices:

MPV (mean platelet volume): 7 - 10 fL - average platelet volume;
PDW: 9 - 16% - width of platelet distribution by volume;
PCT (platelet crit): 0.108 - 0.282% - the proportion of blood volume occupied by platelets.

Deviation of platelets in the blood from the norm may indicate:

when decreasing by:

bronchial asthma;
malaria;
thrombocytopenia;
malignant neoplasm;
Sumter's syndrome.

when increasing by:

essential thrombocythemia

Lymphocytes (LYM - lymphocyte)

Norm of lymphocytes in the blood:

Men and women:

from 16 years and older: 20 - 40%.

Children:

newborns: 15 - 35%;
up to 2 weeks: 22 - 55%;
from 2 weeks to 1 year: 45 - 70%;
from 1 year to 2 years: 37 - 60%;
from 2 to 5 years: 33 - 55%;
from 6 to 7 years: 30 - 50%;
from 8 to 9 years: 30 - 50%;
from 9 to 11 years: 30 - 46%;
from 12 to 15 years: 30 - 45%.

Deviation of lymphocytes in the blood from the norm may indicate:

when decreasing by:

autoimmune diseases;
diseases of the nervous system;
HIV infection;
side effects from taking medications.

when increasing by:

viral diseases;
bacterial infections;
fungal diseases;
toxoplasmosis;
tuberculosis;
whooping cough;
vasculitis;
malignant neoplasms;
initial stage of HIV;
excess carbohydrates in the body compared to fats and proteins;
thyroid diseases;
starvation.

Monocytes (MON - monocyte)

Norm of monocytes in the blood:

Men and women:

from 16 years and older: 3 - 9%.

Children:

newborns: 3 - 12%;
up to 2 weeks: 5 - 15%;
from 2 weeks to 1 year: 4 - 10%;
from 1 year to 2 years: 3 - 10%;
from 2 to 5 years: 3 - 9%;
from 6 to 7 years: 3 - 9%;
from 8 to 9 years: 3 - 9%;
from 9 to 11 years: 3 - 9%;
from 12 to 15 years: 3 - 9%.

Deviation of monocytes in the blood from the norm may indicate:

when decreasing by:

use of immunosuppressants;
hereditary diseases.

when increasing by:

stress;
diabetes;
atherosclerosis;
bacterial infections;
malignant neoplasms;
sepsis;
collagenosis;
sarcoidosis

Hematocrit (HCT - hematocrit)

Hematocrit norm:

Men:

from 12 to 15 years: 35 - 45%;
from 15 to 18 years: 37 - 48%;
from 18 to 45 years old: 42 - 50%;
from 45 to 65 years: 39 - 50%;
over 65 years old: 37 - 51%.

Women:

from 12 to 15 years: 34 - 44%;
from 15 to 18 years: 34 - 44%;
from 18 to 45 years old: 38 - 47%;
from 45 to 65 years: 35 - 47%;
over 65 years old: 35 - 47%.

Children:

up to 2 weeks: 41 - 65%;
from 2 to 4.3 weeks: 33 - 55%;
from 4.3 to 8.6 weeks: 28 - 42%;
from 8.6 weeks to 4 months: 32 - 44%;
from 4 to 6 months: 31 - 41%;
from 6 to 9 months: 32 - 40%;
from 9 to 12 months: 33 - 41%;
from 1 year to 3 years: 32 - 40%;
from 3 to 6 years: 32 - 42%;
from 6 to 9 years: 33 - 41%;
from 9 to 12 years: 34 - 43%.

A hematocrit deviation from the norm may indicate:

when decreasing by:

pregnancy;
anemia;
children's age;
hypoproteinemia;
overhydration.

when increasing by:

true polycythemia;
hypoxia;
kidney hydronephrosis;
kidney neoplasm;
polycystic kidney disease;
peritonitis;
burn disease;
leukemia;
dehydration.

Blood color index (BC)

Normal blood color index:

Men, women and children:

all ages: 0.9 - 1.1.

A deviation of the blood color indicator from the norm may indicate:

when decreasing by:

anemia;
purulent infections;
cirrhosis of the liver;
tuberculosis;
Iron-deficiency anemia;
iron-saturated hypochromia;
malignant neoplasms;
thalassemia;
microcytosis.

when increasing by:

lack of vitamin B12;
lack of folic acid;
dysbacteriosis;
chronic pancreatitis;
stomach diseases;
diseases of the small intestine;
cirrhosis of the liver;
long-term treatment with glucose-lowering drugs;
long-term treatment with anti-tuberculosis drugs;
poor nutrition.

When to take it

A general clinical blood test must be taken:

As prescribed by a doctor;
As a preventative measure to assess general health;
As part of routine medical examinations and examinations.

Preparing for analysis

The analysis for lymphocytes is included in the general blood test, the rules for their conduct are the same. That is, such an examination does not require special preparation. There are only two conditions that must be met:

Blood is taken in the morning.
8-12 hours before blood sampling you need to abstain from food.

You should also not smoke 2-3 hours before the procedure. Components of tobacco smoke can cause serious temporary changes in white blood cell levels. You should avoid drinking alcohol 2-3 days before taking the test, as alcohol can also affect the reliability of the results obtained.

If these requirements are not met, the accuracy of the examination may deteriorate, which will lead to the doctor receiving unreliable information and possible errors in diagnosis or re-prescribing the examination.

Treatment

If the child’s lymphocytes are higher than normal, the doctor determines the cause and selects the most effective treatment. Elevated lymphocytes in the child’s blood indicate that the immune system is resisting the disease developing in the body. Medicines are not prescribed in this situation. The first thing the specialist recommends is to improve the baby’s daily routine, which should consist of proper sleep patterns, walks in the fresh air, and rest. If lymphocytes in a child’s blood are elevated, you need to provide him with adequate nutrition.

If the process is accompanied by elevated temperature, the doctor may prescribe antipyretic drugs. Also, in some cases, medications are prescribed that have anti-inflammatory and antiviral effects. Another task for the specialist is to determine whether the child’s lymphocytes are elevated as a result of a tumor or not. If the cause is a tumor, the doctor’s further tactics are determined by the form of the tumor and the activity of development. In this situation, the doctor may prescribe chemotherapy or a bone marrow transplant. It is not recommended to ignore the symptoms or doctor’s recommendations by self-medicating.

Prevention

To prevent elevated lymphocytes in a child’s blood, you need to adhere to the following preventive actions:

proper nutrition (the diet should be balanced);
playing sports (loads should be moderate);
avoid hypothermia (dress your baby according to the weather);
regular examination by doctors.

It is recommended to regularly take blood tests to ensure that your baby does not form bad habits.

Research method

Material for analysis of lymphocytes is collected from a vein using a conventional syringe or a special vacuum system. The traditional technique of taking an analysis using a conventional syringe is currently outdated and can lead to the following difficulties:

Blood clotting in a needle.
Destruction of some blood cells.
Long manipulation time.
Contact of blood with the environment
It is difficult to maintain the correct ratio of blood and reagents. In addition, the traditional technique does not exclude contact of medical personnel with the patient’s biomaterial, which can pose a health hazard. Therefore, many clinics use modern vacuum containers for blood collection.

Blood enters it due to the vacuum in the test tube; all parameters of the vacutainer are selected at the production stage in order to reduce the time for blood collection and ensure the correct ratio of the amount of reagent and blood.

Advantages of vacuum systems:

A standardized blood collection process that takes minimal time.
Contact of medical staff with the patient’s blood is completely excluded.
Simple labeling and identification of samples, eliminating confusion with tubes.
Almost painless procedure.

You can take blood for a general analysis from a finger, but at the moment this procedure is used much less frequently.

Norms

The normal level of lymphocytes in the blood depends on the age of the patient. In children, the number of lymphocytes is higher; over time, this figure gradually decreases. The number of these cells is influenced by the gender of the patient; in women the indicator is relatively higher. This is due to the greater activity and adaptive capacity of the lymphatic system of the female body.

Person's age	Absolute content	Ratio in %
In a child under one year old	2-12	45-71
In a one-year-old child	4-10	38-61
2-4 years	3-9	34-50
4-10 years	1,6-6,7	31-51
10-18 years	1,3-5,3	31-43
Over 18 years old, adults	1-4,9	20-40
Cancer risk for women:	265	368

Types of lymphocytosis

An increase in the number of lymphocytes in women is associated with a major source of dysfunction. Experts identify several types of pathology:

Reactive – provoked by diseases that cause disruption of the functionality of the immune system. The list is presented: infectious mononucleosis, tuberculosis, syphilis, HIV infection, severe depletion of the body. To normalize test results, it is necessary to carry out therapy for the infectious disease.
Malignant – cancerous tumors provoke the formation of acute or chronic lymphocytosis. The phase of the disease directly depends on the stage of development of the neoplasm.
Post-infectious – deviations in tests are caused by previous infections. Lymphocytosis is accompanied by influenza, chickenpox, rubella, hepatitis, scarlet fever, and measles.

A sharp increase in the number of lymphocytes in the blood should alert a woman. Sometimes deviations make it possible to timely detect latent pathological processes or the initial stages of malignant neoplasms. Small changes should not be ignored; patients need to reconsider their usual diet, eliminate bad habits, and do not forget about seasonal vitamin therapy.

Lymphocytes are increased

The reason why lymphocytes are elevated is often a variety of viral infections. This increase is called lymphocytosis, and is most often recorded in diseases caused by viruses:

Epstein-Barr.
Adenovirus.
Herpes.
Childhood infections (rubella, measles, mumps).

The number of lymphocytes may increase with some bacterial infections, such as syphilis, whooping cough, or tuberculosis. Diseases caused by protozoa, such as malaria and toxoplasmosis, can lead to lymphocytosis. Often, an increase in lymphocytes is caused by helminthic infestations.

Lymphocytes may be elevated for reasons unrelated to infection. These include:

Hypersensitivity reactions.
Stress lymphocytosis.
Autoimmune diseases.
Disorders of the endocrine organs, especially the thyroid gland.
Development of tumors and pretumor processes.

The most striking signs of an increase in the number of lymphocytes include:

Enlarged liver, spleen, lymph nodes.
General malaise, manifestations of respiratory infections, redness and swelling of the mucous membranes.
A sharp increase or decrease in temperature, accompanied by chills.
Dyspeptic symptoms - vomiting, stool disorders, nausea.
Nervous system disorders due to elevated temperature.

It should be borne in mind that lymphocytosis does not always manifest itself through severe symptoms. Often, elevated levels of these cells are discovered by chance. Only a doctor can accurately determine the reason why a change in the blood formula occurred; this often requires additional tests.

To eliminate lymphocytosis, you need to cure the disease that led to an increased immune response. It is important to understand that the hematopoietic system responds to recovery with a certain delay. Even after complete recovery, lymphocytosis can persist for up to several months.

Diagnostics

The level of lymphocytes is measured during a clinical blood test. Due to the fact that lymphocytosis has a fairly wide etiological spectrum, if it is detected, you should contact a generalist (general practitioner or pediatrician) so that, based on the patient’s complaints, anamnestic data, and physical examination, he will prescribe an additional examination, which may include:

Blood tests
. The leukocyte formula is calculated to determine the percentage of all forms of leukocytes. A blood smear is studied using microscopy to identify atypical mononuclear cells, Botkin-Gumprecht shadows (remnants of destroyed lymphocytes). Inflammatory markers are determined - increased ESR, CRP. To detect tumor antigens, immunophenotyping and immunohistochemical studies are performed.
Pathogen identification
. In order to identify an infectious agent, tests are performed for the presence of antibodies to pathogens and their DNA (by ELISA, PCR). Bacteriological studies are carried out - culture, sputum microscopy (tuberculosis, whooping cough), serological diagnostics - Wright, Heddelson reaction (brucellosis), microprecipitation reaction (syphilis).
Instrumental Research
. With tuberculosis, an X-ray of the lungs shows an increase in the hilar and mediastinal lymph nodes, infiltration of the upper lobes of the lungs, and sometimes effusion into the pleural cavity. In case of mononucleosis and hemoblastoses, ultrasound of the abdominal cavity reveals pronounced splenomegaly, less often hepatomegaly.
Histological studies
. In chronic lymphocytic leukemia, a large number of lymphoblasts are found in the bone marrow punctate. In lymphomas, a lymph node biopsy obtained by fine-needle aspiration reveals diffuse proliferation of lymphoid cells with blast morphology. A specific sign of lymphogranulomatosis is Berezovsky-Sternberg giant cells.

Leukocyte count

Lymphocytes are low

A decrease in lymphocytes is called lymphopenia. This condition is typical for the following diseases:

AIDS.
Long-term, severe infections.
Bone marrow pathologies.
Tumors of lymphatic tissues.
Exposure to radiation.
Taking certain groups of drugs, such as cytostatics.
Pregnancy.

In most cases, a decrease in the level of lymphocytes indicates a depleted immune system, when the body, for various reasons, is unable to maintain the required level of these cells in the blood.

Lymphopenia rarely presents with characteristic symptoms. The most common signs of this condition include:

Reduction or complete absence of tonsils and other peripheral lymph nodes.
Skin diseases - eczema, pyoderma.
Common signs of blood diseases are ulcers of the oral mucosa, petechiae, pallor, and jaundice.
Enlarged liver and spleen.

As in the case of lymphocytosis, to normalize the level of these cells, it is necessary to eliminate the cause that led to the pathological condition. You need to see a doctor who can establish an accurate diagnosis and prescribe the correct treatment regimen.

In the case of lymphopenia in pregnant women, with a moderate decrease in the level of lymphocytes, there is no need to take special measures. Enhanced monitoring of your health status and regular completion of all necessary examinations is sufficient. If there is a sharp drop in lymphocytes, you should seek medical help for additional diagnostics.

Classification

There are no clear numerical criteria for dividing lymphocytosis according to severity. Conventionally, moderate (up to 60%) and high lymphocytosis (more than 60%) are distinguished. The main cause of high lymphocytosis is considered to be malignant diseases of the hematopoietic and lymphatic tissue. Lymphocytosis, like other types of leukocytosis, is divided into:

Absolute
. Absolute lymphocytosis means an increase in the number of lymphocytes along with the total number of leukocytes (in adults more than 4000, in children under 5 years of age more than 6000).
Relative
. Relative lymphocytosis is much more common and means a percentage increase in lymphocytes (more than 40%) against the background of a normal or even reduced total number of leukocytes.