What are the causes of polycystic ovary syndrome?

Jun 19, 2025 Source: Cainiu Health

Dr. Zhang Lu

Introduction

In general, the main causes of polycystic ovary syndrome (PCOS) include genetic factors, irregular作息 (作息 should be translated as "作息" is missing in the provided answer, but based on context it likely refers to "lifestyle作息" or "daily routine"), prolonged emotional distress, obesity, and medication factors. If discomfort symptoms occur, it is recommended to seek timely medical consultation and treatment at a正规 hospital. Patients with PCOS may use medications such as progesterone capsules, dydrogesterone tablets, and letrozole tablets under a doctor's guidance. Note: The word "作息" does not have a direct equivalent in English but refers to daily routines or lifestyle habits. It is best translated in context. Also, "正规" has been translated as "qualified" or "standard," but "accredited" or "reputable" could also be appropriate depending on context.

Generally, the main causes of polycystic ovary syndrome (PCOS) include genetic factors, irregular sleep patterns, prolonged emotional distress, obesity, and medication-related factors. If discomfort symptoms occur, it is recommended to seek timely diagnosis and treatment at a reputable hospital. Detailed explanations are as follows:

1. Genetic Factors

Polycystic ovary syndrome shows a clear familial clustering. If female relatives in the family have this condition, the individual's risk of developing PCOS increases. This may be related to variations in certain genes that might affect hormone synthesis, metabolism, and ovarian development and functional regulation.

2. Irregular Sleep Patterns

When sleep patterns become irregular, such as frequent late nights or reversed day-night cycles, the body's biological clock is disrupted, leading to endocrine system disorders. Hormonal imbalances can cause dysfunction of the hypothalamic-pituitary-ovarian axis, affecting the normal secretion of hormones such as gonadotropin-releasing hormone, follicle-stimulating hormone, and luteinizing hormone.

3. Prolonged Emotional Distress

Long-term states of anxiety, depression, excessive stress, and other negative emotions can adversely affect the neuroendocrine system. Hypothalamic dysfunction leads to disordered secretion of gonadotropin-releasing hormone, which subsequently affects the pituitary gland's secretion of follicle-stimulating hormone and luteinizing hormone, impairing ovarian function and increasing the risk of PCOS.

4. Obesity

Adipose tissue secretes various hormones and cytokines, such as leptin, adiponectin, and tumor necrosis factor-alpha. In obesity, leptin levels increase, but the body's sensitivity to leptin decreases, leading to leptin resistance. Additionally, obesity is often accompanied by insulin resistance. Hyperinsulinemia stimulates the ovaries to secrete excessive androgens, inhibits follicular maturation and ovulation, and promotes the development of polycystic ovarian changes.

5. Medication Factors

Certain medications may affect the endocrine system and thereby induce PCOS. For example, long-term use of some antiepileptic drugs, such as sodium valproate, may interfere with the body's hormonal metabolism and balance. These drugs may impact the liver's ability to inactivate hormones or affect hormone receptor sensitivity, leading to elevated androgen levels and disrupted estrogen and progesterone secretion, which impairs normal ovarian function and increases the risk of PCOS.

Patients with PCOS can use medications such as progesterone capsules, dydrogesterone tablets, and letrozole tablets under a doctor's guidance. In daily life, they should control total calorie intake, reduce consumption of high-sugar and high-fat foods, and increase the proportion of foods rich in dietary fiber, such as vegetables, fruits, and whole grains, to maintain a healthy weight.

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Is progesterone effective for treating polycystic ovary syndrome?

In general, patients with polycystic ovary syndrome (PCOS) may benefit to some extent from taking progesterone. Polycystic ovary syndrome is an endocrine disorder characterized by coexisting reproductive dysfunction and abnormal glucose metabolism. It is defined by persistent anovulation, hyperandrogenism, and insulin resistance, and is the most common cause of menstrual irregularities in women of reproductive age.

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How to lose weight with polycystic ovary syndrome

Patients with polycystic ovary syndrome (PCOS) need to approach weight loss comprehensively, including adjusting dietary composition, controlling food intake, engaging in regular aerobic exercise, increasing strength training, and ensuring adequate sleep. It is important to undergo regular physical examinations, including monitoring indicators such as blood glucose, blood lipids, and hormone levels, to keep track of health status and promptly identify and address any issues through timely adjustments in treatment and lifestyle.

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Does polycystic ovary syndrome cause irregular menstruation?

In general, polycystic ovary syndrome (PCOS) may lead to menstrual irregularities. PCOS is primarily an endocrine and metabolic disorder characterized by elevated levels of androgens and an imbalance in gonadotropin ratios. Excess androgens can inhibit normal follicular development, and the ovaries may develop multiple small follicles that fail to mature and ovulate properly.

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Can women with polycystic ovary syndrome (PCOS) get pregnant normally?

Patients with mild polycystic ovary syndrome (PCOS) who have relatively normal ovulation can conceive naturally. When symptoms are mild, menstrual cycles are generally regular, with occasional ovulation, and the polycystic appearance of the ovaries is not prominent. By adjusting lifestyle factors, such as controlling weight and maintaining regular sleep patterns, normal ovulation may be restored, resulting in a higher probability of natural conception. Some patients may achieve pregnancy without requiring medication.