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Premature Ovarian Failure
(Early Menopause)
Premature ovarian failure is a condition characterized by impaired ovarian function before the age of 40, leading to early-onset menstrual irregularity, early cessation of periods, and disrupted hormone levels. The incidence of premature ovarian failure varies between populations. It affects approximately 1% of women under 40, around 0.1% of women under 30, and about 0.01% of women under 20. Although the cause is usually unknown, it often develops due to genetic factors. With advances in early diagnostic methods, treatment can be planned in a way that makes pregnancy achievable in these cases.
What Is Premature Ovarian Failure?
A healthy woman's egg cells begin to form while she is still in her mother's womb. By the 20th week of pregnancy, a female fetus's ovaries contain approximately 6-7 million egg cells, and this number gradually declines over time through programmed cell death. Up until menopause, one egg cell matures and develops each month, ready for potential conception. Normally, egg reserves begin to decline after the age of 40, and once menopause begins and menstrual cycles stop, the egg reserve is fully depleted and fertility comes to an end. However, in some women, the ovarian reserve can decline at a much earlier age due to various causes.
Under normal circumstances, a woman's body holds enough egg reserve to conceive up until her 40s. After the ages of 45-50, egg reserve gradually declines, and from a certain age onward, the reserve becomes completely depleted with the onset of menopause. In women, the period between ages 20 and 30 is when egg reserve is at its highest and reproductive potential is at its best. In addition, egg reserve is affected not only by age but also by many other factors such as genetics, nutrition, general health status, environmental influences, stress, and chronic illnesses.
Unfortunately, many women diagnosed with premature ovarian failure are unable to conceive naturally and require treatment to achieve pregnancy.
Causes of Premature Ovarian Failure
Although the exact cause of premature ovarian failure is not fully understood, two main mechanisms are considered central to explaining this condition.
Inherited Programmed Cell Death
From puberty onward, millions of oocytes (immature egg cells) in a woman's ovaries are gradually lost through a process of programmed cell death known as apoptosis. This is a natural part of how the body works. While millions of eggs are lost through this mechanism, the healthiest ones mature each month with the potential to result in pregnancy. However, a disruption in this process can lead to rapid destruction of egg cells and an uncontrolled, early depletion of the ovarian reserve.
Autoimmune Diseases
In approximately 10-30% of premature ovarian failure cases, an underlying autoimmune disease is responsible. In autoimmune diseases, the immune cells mistakenly recognize the body's own cells as foreign and mount a defensive attack against them, destroying them. In individuals with an autoimmune disease, the immune system may attack the egg cells and destroy them. This can lead to early depletion of ovarian reserve and a decline in reproductive capacity.
How Is Premature Ovarian Failure Diagnosed?
The absence of periods for 4 months before the age of 40 is one of the key signs of this condition. In a woman presenting with absent or irregular periods, a comprehensive evaluation is carried out, including a gynecological examination, ultrasound assessment of the uterus and ovaries, and blood hormone tests.
Follicle-stimulating hormone (FSH) and anti-Müllerian hormone (AMH) levels provide information about ovarian reserve. A blood FSH level above 40 IU/L together with an AMH level below 1 allows a diagnosis of premature ovarian failure to be made.
Treatment Methods for Premature Ovarian Failure
There is no definitive cure for premature ovarian failure. However, the following treatments can help improve the chance of fertility:
Egg freezing: Freezing eggs increases a woman's chance of having children in the future.
IVF: This is the process of fertilizing eggs in the laboratory and then transferring the resulting embryo into the uterus. IVF treatment can increase the chance of pregnancy in women with premature ovarian failure.
Hormone therapy: Hormone therapy can help relieve the symptoms caused by early menopause.
Premature ovarian failure is a serious health issue with both physiological and psychological components, leading to the loss of reproductive capacity at a young age. For this reason, it is important for women experiencing absent periods to consult a gynecologist who specializes in reproductive health to investigate the underlying cause.
When diagnosed early, fertility can be preserved through methods such as egg freezing and IVF treatment, while hormone therapy can help address potential long-term issues such as bone loss. For this reason, it is important to regularly monitor calcium and vitamin D levels and to provide the necessary supplementation if a decline is detected.
In addition, because declining estrogen levels can increase the risk of future cardiovascular problems, appropriate precautions can be taken through bioidentical hormone replacement therapy. Lifestyle changes such as healthy nutrition and regular exercise may also be recommended. When the condition is found to be related to an autoimmune disorder in particular, treatments that support the immune system and a functional medicine approach can be beneficial.
In recent years, as women have taken a more active role in social and professional life, the average age at which they have children has shifted later. For women diagnosed with premature ovarian failure, it is vital to be informed about modern technologies such as ovarian tissue freezing and egg or embryo freezing. These methods can help preserve the chance of having children even for women with reduced reproductive capacity.
Prevention of Premature Ovarian Failure
There is no known method to prevent premature ovarian failure. However, avoiding the following factors may help reduce the risk:
Smoking
Alcohol use
Consuming too much caffeine
Chronic stress
Exposure to radiation