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Focal endometrial hyperplasia
Last reviewed: 04.07.2025

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Focal endometrial hyperplasia is a limited thickening of the uterine layer that lines its inner surface.
In the case where the number of endometrial cells is increased, we should talk about a simple focal form, which is most often attributed to background pathology. If the pathology is complex, then it is characterized by the appearance of some structures that are not inherent in the physiological structure of the endometrium.
As the cellular composition grows, it is customary to distinguish between glandular hyperplasia, when an increase in the number of glandular cells is observed, glandular-cystic with additional formation of cystic formations, and atypical, which is a precursor to cancer pathology.
The most common variant of pathology is considered to be fibrous type and fibrocystic with the appearance of polypous structures. The risk of malignant degeneration in this case is low.
There is a possibility of complications developing in the absence of necessary treatment. Thus, with an atypical form, there is a high risk of malignancy of the pathological process. Relapses of the disease can be diagnosed quite often. In addition, this pathology is the cause of infertility and chronic anemia.
Causes of focal endometrial hyperplasia
The increase in the number of endometrial cells can occur at different ages, but a tendency has been noted for cases to become more frequent during transitional periods of life, such as puberty when the menstrual cycle begins or during menopause. The main reason for the onset of cell proliferation is considered to be hormonal fluctuations in the body during these periods.
It is especially worth paying attention to the level of estrogens, because it is their increased amount that leads to hormonal imbalance, while progesterone remains in deficit.
Causes of focal endometrial hyperplasia also suggest the presence of concomitant pathology outside the reproductive system. For example, pathology of the endocrine system with the development of diabetes, heart and blood vessels against the background of high blood pressure, metabolic disorders manifested by obesity, imbalance of thyroid hormones, diseases of the adrenal glands and mammary glands.
It is not difficult to guess that all of the above diseases directly or indirectly affect the hormonal background of the body, which, as already mentioned, is the main reason for the occurrence of hyperplasia.
As for the genitals, the causes of focal endometrial hyperplasia are the presence of chronic inflammatory processes, adenomyosis, uterine myoma and polycystic ovary syndrome. Again, it is not difficult to guess that these pathologies affect the hormonal state of a woman.
In addition, the risk of developing pathology increases hereditary predisposition, either to focal proliferation of the endometrium, or to the above-mentioned concomitant diseases. In both cases, hormonal imbalance is observed.
And finally, we cannot help but remember frequent abortions, diagnostic curettage and late pregnancies. And in these cases, the risk of fluctuations in hormone levels is very high.
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Signs of focal endometrial hyperplasia
Regardless of the type of pathology, there is one symptom that is characteristic of each of its forms - bloody discharge outside the menstrual cycle. A distinctive feature of this symptom is a small amount of blood released, sometimes spotting.
This is typical for menopause, but for the puberty period, heavy bleeding with clots is more typical. As a result, there is a decrease in the level of red blood cells and hemoglobin in the girl's blood - this is how chronic anemia develops in the absence of a sufficient treatment complex.
Signs of focal endometrial hyperplasia include infertility, as a woman cannot become pregnant due to the absence of ovulation in her menstrual cycle. This is due to the excess amount of estrogens in the blood. In some cases, the pathology may have absolutely no clinical manifestations, so the inability to become pregnant is a reason to visit a doctor and undergo further examination.
With hyperplasia, menstruation is characterized by heavy discharge, not counting that outside the cycle, a small amount of blood is also released. In total, the girl may feel weak, dizzy, and the skin becomes pale.
During an anovulatory cycle, glandular cystic hyperplasia is most often detected, developing due to the processes of dystrophy and death of cells in the uterine layer.
Focal glandular hyperplasia of the endometrium
Depending on the structural changes in the inner uterine layer, it is customary to distinguish some types. Thus, focal glandular hyperplasia of the endometrium is a local proliferation of glandular tissue cells, when a thickening of the endometrium is noted in this area.
The background disease for the development of pathology can be endocrine, vascular pathology, as a result of which hormonal disorders occur. An increase in the level of estrogen and a decrease in progesterone stimulate the activation of the growth of glandular tissue.
In addition, diseases of the reproductive system (myoma, genital endometriosis, inflammatory processes) also participate in endometrial hyperplasia.
Focal glandular hyperplasia of the endometrium is most often detected when a woman visits a gynecologist because she is not pregnant. However, a change in the menstrual cycle is possible as a result of the formation of endometrial polyps, fibroids, or endometriosis.
Delays in the onset of menstruation with subsequent heavy bleeding are possible, as a result of which the woman loses red blood cells with the blood, which leads to the development of anemia. Its manifestations are dizziness, pallor, weakness and loss of appetite.
Treatment tactics involve the use of medications for substitution purposes. In addition to oral hormonal agents, injections, patches, and intrauterine devices are often used.
In the absence of a therapeutic effect, it is necessary to resort to surgical intervention, when the affected area of the endometrium is removed. In severe cases, estripation (removal) of the uterus is possible. After surgical treatment, hormonal drugs in a low dose may be additionally prescribed.
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Simple focal endometrial hyperplasia
Based on the presence of a large number of cells or additional structures in the endometrium, simple focal endometrial hyperplasia and complex hyperplasia are distinguished. It is the simple form that is the most favorable due to the presence of only a large cellular composition and the absence of atypia.
It is related to background pathology, as it is characterized by a low risk of malignancy. In turn, simple hyperplasia can be glandular or cystic. The diagnosis is made after the detection of cystic formations or proliferation of glandular tissue.
Considering that this pathology has a hormonal genesis, treatment of the pathology should also be aimed at regulating the hormonal balance and normalizing the qualitative and quantitative cellular composition of the endometrium.
For this purpose, hormonal agents in tablet form can be used. It is important to remember that the dosage, frequency of administration and duration of the therapeutic course should be determined exclusively by a doctor. In case of incorrect selection of the dose of the hormonal drug, not only the absence of a positive effect on hyperplasia is possible, but also the progression of the concomitant pathology and the appearance of side effects.
In addition to tablets, injectable hormones, pastes or an intrauterine coil can be used. Sometimes combined treatment is required. It consists of prescribing hormonal agents after surgical removal of the endometrial area affected by hyperplasia.
Focal basal hyperplasia of the endometrium
This form of pathology is observed quite rarely. It is characterized by an increase in the thickness of the endometrium, in particular the basal layer, as the glandular tissue grows. Pathological cell proliferation occurs in the compact layer in parallel with stromal hyperplasia, resulting in the emergence of polymorphic nuclei of large stromal cells.
Focal basal hyperplasia of the endometrium is registered mainly after 35 years, characterized by limited cell proliferation. The basal layer, which is subject to hyperplasia, has blood vessels arranged in a ball. Their walls are changed by sclerotic processes, as a result of which an increase in their thickness is noted.
The explanation for prolonged menstruation with heavy bleeding and pain is the slow rejection of areas of the basal layer that undergo hyperplasia.
When conducting an examination and confirming the diagnosis, it is recommended to perform diagnostic curettage on the 6th-7th day from the onset of menstruation.
This type is not considered a precancerous process, since the risk of degeneration into a malignant form is minimal.
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Focal atypical endometrial hyperplasia
Compared to other forms of pathology, focal atypical endometrial hyperplasia is considered the most dangerous, as it has the highest risk of malignant transformation. Endometrial cells lose their physiological structure and acquire a new characteristic.
In some cases, the cells are so different in appearance that they clearly stand out against the background of healthy ones. The degeneration of the cellular composition can be malignant, which requires a special treatment approach.
Focal atypical endometrial hyperplasia most often becomes malignant in women over 45, because the body's defenses weaken and treatment does not have as positive an effect as expected. At the same time, the frequency of malignancy of the atypical type of pathology is practically not observed in young people.
In addition, in older age, hormonal therapy used to stabilize hormone levels is not always effective, which suggests the use of surgical treatment.
Since the endometrium consists of 2 layers, pathological changes in cells can be observed both in the functional and basal layers. The first is capable of being rejected during menstruation and gradually recovering under the influence of estrogens, so it is more susceptible to hyperplastic processes.
As for the basal layer, the occurrence of atypia in its cells indicates a cancerous process. Most often, atypical cells arise as a result of hormonal imbalance, as well as other concomitant diseases, which become the trigger for the beginning of transformation.
Focal glandular cystic hyperplasia of the endometrium
Hormonal imbalances can serve as a background process or the main reason for the appearance of glandular cystic hyperplasia. Insufficient progesterone and, conversely, excess estrogen stimulate thickening of the uterine layer due to the growth of glandular tissue with the formation of cystic formations.
Hormonal fluctuations can occur at different ages, but most reported cases occur during puberty and menopause.
Focal glandular cystic hyperplasia of the endometrium at a young age can be a consequence of frequent abortions, late pregnancy and long-term use of oral contraceptives.
In addition to this, disorders in the endocrine system, for example, dysfunction of the thyroid, pancreas, adrenal glands and metabolic processes also provoke the development of pathology in the endometrium.
It is important to remember that surgical intervention in the uterine cavity has a direct traumatic effect on its layers, which, in the presence of underlying diseases, threatens the emergence of uncontrolled cell proliferation.
Clinical symptoms manifest as changes in the menstrual cycle with the appearance of bloody discharge between periods. In addition, there are strong and prolonged discharges, as a result of which the woman feels weak, has a worsening appetite, and the skin turns pale.
Another manifestation is considered to be infertility, which occurs as a result of the absence of ovulation.
Focal endometrial hyperplasia and pregnancy
Based on statistical data, focal endometrial hyperplasia and pregnancy cannot coexist at the same time. Exceptions can only be noted in the focal form of pathology.
This pathology is one of the causal factors of infertility, which makes a woman consult a gynecologist. The menstrual cycle has no ovulation, so the chances of getting pregnant are extremely low. However, in some cases, fertilization of the egg and attachment to the uterine wall still succeed.
As a result, the risk of spontaneous abortion at an early stage increases. With hyperplasia, the process of bearing a fetus can have a number of pathological processes, including for the future baby.
As for the pregnant woman, during this period the risk of malignancy of the disease increases, because hormonal changes are again observed, which have a direct impact on hyperplasia.
However, in some cases, on the contrary, regression of hyperplasia is observed under the influence of progesterone, which was insufficient, and during pregnancy its amount increases.
If a woman is not planning a pregnancy yet, but she has been diagnosed with endometrial hyperplasia, then treatment consists of taking hormonal contraception. In the case where a woman wants to have children, but pregnancy does not occur due to illness, treatment is carried out for both this pathology and infertility.
Diagnosis of focal endometrial hyperplasia
When visiting a gynecologist, the first thing to do is to analyze the patient's complaints and conduct an objective examination. In this way, you can find out about the menstrual cycle, the amount of blood released, pain, and the presence of intermenstrual discharge.
In addition, based on external appearance, one can detect paleness of the skin, and upon palpation of the mammary glands, fibroadenoma or other formations, which will indicate hormonal disorders.
Diagnosis of focal endometrial hyperplasia involves a gynecological examination, during which the walls of the vagina and uterus, their consistency, color, and the presence of additional formations are examined.
With the help of ultrasound, it becomes possible to determine the thickening of the endometrium and polyps in the form of oval formations. This method is related to screening, since only the thickness of the endometrium is recorded without visualization of the cellular composition.
Hysteroscopy is performed using a special device that allows the uterine cavity to be examined. After separate diagnostic curettage, the scraping is subjected to histological analysis to determine the form of pathology.
Scraping should be done, having been planned in advance for the period before menstruation. This method simultaneously performs two functions: firstly, it conducts diagnostics and confirms the diagnosis, and secondly, it is simultaneously considered a therapeutic manipulation.
Ultrasound with a vaginal sensor has about 70% information content, while hysteroscopy has almost 95%. Another diagnostic method is aspiration biopsy, when a small area of the endometrium is taken and a histological examination is performed.
And finally, to determine the causal factor of hyperplasia, it is necessary to determine the level of hormones in the blood, which in most cases confirms the hormonal nature of the pathology.
Treatment of focal endometrial hyperplasia
Regardless of the patient's age, treatment of focal endometrial hyperplasia should be carried out in full to avoid the development of complications and deterioration of health.
During hysteroscopy, not only the disease is diagnosed, but also treated. The surgical method is used in reproductive age, the period before menopause, and in emergency cases when there is heavy bleeding or the presence of polypous formations.
Scraping is performed under the control of a hysteroscope. During the operation, the endometrial lining altered by hyperplasia is removed. Polypous formations are removed with forceps or special scissors, this is called polypectomy.
After the surgical intervention, the removed material is sent for histological examination, based on the results of which hormonal therapy is then prescribed. Its purpose is to restore the balance of hormones and prevent the occurrence of hyperplasia in other areas of the endometrium.
An exception is fibrous polyps, which do not require the use of hormonal agents. Other forms require these agents. Oral contraceptives are widely used, for example, Janine or Janine.
In case of massive bleeding in adolescents, large doses of hormones are used to avoid curettage. Also, gestagens such as Utrozhestan or Duphaston are used for therapeutic purposes. The duration of the therapeutic course is from 3 to 6 months.
In addition to the tablet form, there is a gestagen-containing spiral "Mirena", which is inserted into the uterus. Its difference is considered to be a local effect on hyperplasia, which is more successful and has a lesser effect on the overall hormonal background than oral drugs.
It is also necessary to note the group of gonadotropin-releasing hormone agonists, for example, Buserelin or Zoladex, which are used after the age of 35 and during menopause lasting up to six months. In addition to pathogenetic therapy, vitamin complexes should be taken and especially glandular preparations for the treatment of anemia. In some cases, physiotherapy procedures and acupuncture are prescribed.
Prevention of focal endometrial hyperplasia
To avoid the development of a pathological process, you should follow some recommendations. They will help reduce the likelihood of atypia and cell proliferation.
Prevention of focal endometrial hyperplasia consists of regular examination by a gynecologist, at least 2 times a year. This will not only prevent the progression of the pathology if it is present, but also start treatment in a timely manner, which increases the chances of recovery.
In addition, abortions should be avoided, since frequent trauma to the endothelium can cause activation of the pathological process. It is necessary to use protection during sexual intercourse to prevent or reduce the likelihood of unwanted pregnancy and, accordingly, abortion.
It is necessary to control the activity of chronic inflammation of the genital organs and try to carry out the necessary treatment to avoid provoking its progression and the appearance of complications.
Since concomitant pathology also affects the development of pathology through hormonal background, it is therefore necessary to carry out their complete treatment and further prevention of relapse.
Moderate physical activity and a minimum number of stressful situations also help to normalize hormonal balance and prevent the occurrence of hyperplasia.
Forecast
Depending on the form of manifestation of the pathological process, the prognosis for life should be distinguished. Atypical hyperplasia is considered the most dangerous, as it is characterized by the appearance of altered cells, which may mean transformation into a malignant form. In view of this, early diagnosis of the atypical form and treatment can reduce the risk of malignancy.
The prognosis of focal endometrial hyperplasia in the presence of a glandular-cystic component is relatively unfavorable. This form does not pose a threat to life, but it worsens the quality of life. This is due to the absence of ovulation in the menstrual cycle, which in turn significantly reduces the chances of getting pregnant.
In most cases, it is infertility that is the reason for a woman to see a gynecologist. If cystic formations are not removed in a timely manner, there is a possibility that they will degenerate into malignant tumors.
The prognosis also depends on the accompanying pathology, because hypertension reduces the chances of recovery, since the treatment will not have the desired effect in full. This is especially true for diseases that affect the hormonal background, such as dysfunction of the thyroid gland, adrenal glands and ovaries.
Focal endometrial hyperplasia is not a reason for disorders, because modern medical methods allow controlling the pathological process and gradually promoting its regression. To avoid the occurrence of this pathology, you should follow these recommendations, and if the disease is detected during a gynecological examination, begin treatment as soon as possible.