Academic literature on the topic 'Oligo-/Anovulation'

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Journal articles on the topic "Oligo-/Anovulation"

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Zaydiyeva, Z. S., and A. T. Uruymagova. "Polycystic ovarian syndrome: current understanding of pathogenesis, diagnosis and treatment." Meditsinskiy sovet = Medical Council, no. 13 (October 16, 2021): 102–11. http://dx.doi.org/10.21518/2079-701x-2021-13-102-111.

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Review article is devoted to one of the most common polygenic endocrinopathies in women of reproductive age, polycystic ovarian syndrome (PCOS). We review the current criteria used to make a correct diagnosis based on four phenotypes of PCOS: Frank (phenotype A) – biochemical and/or clinical hyperandrogenism, oligo-/anovulation, polycystic ovarian morphology according to ultrasound; anovulatory (phenotype B) – oligo-/anovulation, biochemical and/or clinical hyperandrogenism; ovulatory (phenotype C) – biochemical and/or clinical hyperandrogenism, polycystic ovarian morphology according to ultrasound; non-androgenic (phenotype D) – oligo-/anovulation, polycystic ovarian morphology according to ultrasound. This article presents the main theories of PCOS pathogenesis: peripheral, central, insulin, genetic, and also considers epigenetic factors. PCOS is a multifactorial disease in which genes are responsible for the mechanisms of the process, and environmental factors through epigenetics affect the genetic material. PCOS phenotypes play an important role in clinical practice, as they allow an individualised approach to the selection of therapy in each case, taking into account the pathogenesis of the disease and predicting its course in the future. The main therapeutic options for treating patients with PCOS, taking into account the multifactorial nature of the disease and the patient's interest in pregnancy, are reviewed. The article presents modern methods for the correction of hyperandrogenism and anovulation, with special emphasis on the need for progesterone therapy.
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ÖNAL, Murat, and Halime ÇALI ÖZTÜRK. "Anti-Müllerian hormone and HOMA-IR in different phenotypes of polycystic ovary syndrome on insulin resistance." Anatolian Current Medical Journal 5, no. 4 (2023): 376–82. http://dx.doi.org/10.38053/acmj.1323489.

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Aims: To examine the link between serum anti-mullerian hormone (AMH) levels and homeostatic model assessment of insulin resistance (HOMA-IR) in different phenotypes of polycystic ovary syndrome (PCOS).
 Methods: This retrospective study included 120 patients aged 18-30 who visited our polyclinics between June 2021 and December 2022. Patients were divided into four groups based on the Rotterdam criteria for PCOS phenotypes. A control group of 24 individuals was also included. Clinical data, hormonal profiles, and metabolic parameters were obtained from medical records.
 Results: There were significant differences in AMH, follicle stimulating hormone (FSH), luteinizing hormone (LH), and high-density lipoprotein (HDL) levels among the PCOS phenotypes and control group. AMH levels were highest in phenotype 1 (oligo/anovulation + hyperandrogenism + polycystic ovaries) and lowest in the control group. FSH were highest in phenotype 4 (oligo/anovulation + polycystic ovaries) and lowest in the control group. LH were highest in phenotype 2 (oligo/anovulation + hyperandrogenism). HOMA-IR was highest in phenotype 1. However, there were no significant differences in AMH or HOMA-IR levels among the PCOS phenotypes.
 Conclusion: Our study found hormone level differences among PCOS phenotypes but no significant differences in AMH or HOMA-IR. This suggests AMH may not distinguish between phenotypes and insulin resistance may not differ significantly among phenotypes.
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Lazareva, L. M., L. V. Belenkaya, and L. V. Suturina. "Ovulatory dysfunction in women of reproductive age: prevalence, diagnostic criteria, clinical forms." Voprosy ginekologii, akušerstva i perinatologii 21, no. 4 (2022): 116–25. http://dx.doi.org/10.20953/1726-1678-2022-4-116-125.

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The regular menstrual cycle is one of the key health indicators in women of reproductive age, while its disorders most often demonstrate the presence of ovarian dysfunction (OD). Women with OD are at risk of infertility, adverse pregnancy outcomes, carbohydrate metabolism disorders, cardiovascular diseases, osteoporosis, and oncopathology. The aim of this review was to systematize the current data on the prevalence, clinical forms, and methods of diagnosis of OD. OD is very common in the female population, has a complex etiopathogenesis, is one of the symptoms of serious endocrinopathies, genetic disorders, and is a frequent cause of infertility. The main types of OD are oligo/anovulation (OA) and luteal phase deficiency (LPD). Depending on the nature of hormonal disorders, hypogonadotropic, normogonadotropic, hypergonadotropic OD and OD against the background of hyperprolactinemia are distinguished. Clinical manifestations of OD include oligo/amenorrhea, abnormal uterine bleeding and may have a subclinical course without menstrual irregularities. The diagnosis of OD is a challenging task that requires a thorough collection of menstrual history, determination of serum progesterone levels in the luteal phase, evaluation of instrumental examination results. Differential diagnosis of OD is necessary for detecting the clinical form of OD and should be based on the use of modern clinical protocols and standardized algorithms. Key words: ovarian dysfunction, oligo/anovulation, oligo/amenorrhea, menstrual disorders, luteal phase deficiency
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Körpe, Büşra, Samet Kutluay Ergörün, Sümeyye Mermi, and Caner Kose. "The Impact of Polycystic Ovary Syndrome on Tubal Ectopic Pregnancy Risk During First Pregnancy." Jinekoloji-Obstetrik ve Neonatoloji Tıp Dergisi 22, no. 1 (2025): 69–74. https://doi.org/10.38136/jgon.1604251.

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Aim: This study aimed to investigate the effect of Polycystic Ovary Syndrome (PCOS) on the risk of tubal ectopic pregnancy during first pregnancy and how this risk varies across different PCOS phenotypes. Materials and Methods: This retrospective study analyzed 657 women diagnosed with ectopic pregnancy between November 2022 and November 2024 at a tertiary care hospital. Of these, 222 women had confirmed tubal ectopic pregnancies and a documented diagnosis of PCOS at the same center. The participants were divided into two groups based on the Rotterdam criteria: PCOS (n=76) and non-PCOS (n=146). PCOS phenotypes were further classified as Phenotype A (hyperandrogenism, oligo-/anovulation, and PCOM), Phenotype B (hyperandrogenism and oligo-/anovulation), Phenotype C (hyperandrogenism and PCOM), and Phenotype D (oligo-/anovulation and PCOM). Results: Women with PCOS had a significantly higher incidence of tubal ectopic pregnancy during their first pregnancy compared to non-PCOS women (OR: 4.42, 95% CI: 2.22–8.80, p < 0.001). Among PCOS phenotypes, Phenotype C (hyperandrogenism and polycystic ovarian morphology) was the most common (32.9%), followed by Phenotype D (23.7%). Non-PCOS women exhibited higher rates of conventional risk factors, such as intrauterine device use, pelvic inflammatory disease (PID), and previous pelvic surgeries. Conclusion: PCOS may be associated with an increased risk of tubal ectopic pregnancy, especially during the first pregnancy. The findings suggest that hormonal and structural disruptions in PCOS, may impair fallopian tube function and embryo transport. These results underscore the need for targeted fertility counseling and management strategies in women with PCOS to mitigate ectopic pregnancy risks.
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Islam, Jinnat Ara, Fatema Ashraf, and Eva Rani Nandi. "Characteristics of Polycystic Ovarian Syndrome in Sub-fertile Woman Attending to GOPD in ShSMCH." Journal of Shaheed Suhrawardy Medical College 11, no. 1 (2019): 17–23. http://dx.doi.org/10.3329/jssmc.v11i1.43173.

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Background: Polycystic ovarian syndrome (PCOS) is a condition characterized by menstrual abnormalities (oligo/amenorrhea) and clinical or biochemical features of hyperandrogenism and may manifest at any age. It is a common cause of female subfertility. All the dimensions of PCOS have not been yet completely explored.
 Methods: It was a cross sectional comparative study carried out at-GOPD of Shaheed Suhrawardy Medical College & Hospital from January, 2016 to December 2016 on 162 subfertile women. Among them 54 were PCOS group and 108 were non PCOS group. PCOS was diagnosed by (Rotterdam criteria 2003) (i) Oligo or anovulation (ii) hyperandrogenism (iii) Polycystic ovaries. Study was done to evaluate and compare the demographic characteristics, clinical, biochemical and ultrasoundgraphic features of sub-fertile women with and without PCOS.
 Results: A total of 162 sub-fertile women aged 16-36 years. Mean age was 29.5±5.4. There were significant differences between the two groups in terms of (oligo/amenorrhea), hirsutism, WHR and ovarian ultrasound features. There were no significant differences between two groups in correlations between the level of obesity with the incidence of anovulation, hyperandrogenism or with hormonal features.
 Conclusion: PCOS is one of the important factors causing Infertility. It is an ill-defined symptom complex needed due attention. There is a need to increase awareness regarding. The clinical features of PCOS are heterogenous thus can be investigated accordingly of selection of appropriate treatment modality.
 J Shaheed Suhrawardy Med Coll, June 2019, Vol.11(1); 17-23
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Dumesic, Daniel A., David H. Abbott, and Gregorio D. Chazenbalk. "An Evolutionary Model for the Ancient Origins of Polycystic Ovary Syndrome." Journal of Clinical Medicine 12, no. 19 (2023): 6120. http://dx.doi.org/10.3390/jcm12196120.

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Polycystic ovary syndrome (PCOS) is a common endocrinopathy of reproductive-aged women, characterized by hyperandrogenism, oligo-anovulation and insulin resistance and closely linked with preferential abdominal fat accumulation. As an ancestral primate trait, PCOS was likely further selected in humans when scarcity of food in hunter–gatherers of the late Pleistocene additionally programmed for enhanced fat storage to meet the metabolic demands of reproduction in later life. As an evolutionary model for PCOS, healthy normal-weight women with hyperandrogenic PCOS have subcutaneous (SC) abdominal adipose stem cells that favor fat storage through exaggerated lipid accumulation during development to adipocytes in vitro. In turn, fat storage is counterbalanced by reduced insulin sensitivity and preferential accumulation of highly lipolytic intra-abdominal fat in vivo. This metabolic adaptation in PCOS balances energy storage with glucose availability and fatty acid oxidation for optimal energy use during reproduction; its accompanying oligo-anovulation allowed PCOS women from antiquity sufficient time and strength for childrearing of fewer offspring with a greater likelihood of childhood survival. Heritable PCOS characteristics are affected by today’s contemporary environment through epigenetic events that predispose women to lipotoxicity, with excess weight gain and pregnancy complications, calling for an emphasis on preventive healthcare to optimize the long-term, endocrine-metabolic health of PCOS women in today’s obesogenic environment.
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Goswami, Poonam, Fouzia Perveen, Aneela Habib, Shazia Jabbar, Sadia Detho, and Sarah Kazi. "Frequency of Polycystic Ovary Syndrome PCOS and Various Phenotypes of PCOS in a Tertiary Care Hospital." Pakistan Journal of Medical and Health Sciences 16, no. 4 (2022): 576–79. http://dx.doi.org/10.53350/pjmhs22164576.

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Background: The commonest criteria used for diagnosis of Polycystic ovary syndrome (PCOS) are the “Rotherdam criteria” which includes any two among 1:Oligo/anovulation(O), 2:clinical and/or biochemical hyperandrogenemia (H), and 3:polycystic ovaries on ultrasound (P). Aim of the study was to determine the frequency of PCOS diagnosed on clinical findings and the frequency of phenotypes of PCOS in tertiary care hospital. Study Setting: This Cross sectional study was conducted in the Department of Gynaecology & Obstetrics, Unit 3, Civil hospital, Karachi from January, 2018 to July, 2018. Material and Methods: Total 292 patients of age 18-45 years were included. A pelvic ultrasound for status and morphology of ovary was done. After receiving laboratory and ultrasonography results diagnosis for PCOS and phenotypes was made on the basis of different combination of chronic anovulation (O), hyperandrogenism (H) and polycystic ovaries(P). Descriptive statistics were calculated. The stratification was done using chi-square test. P value ≤0.05 was considered as significant. Results: Mean age of patients was 31.37±5.72 years. 67.3% were multiparous. Mean irregular period days and number of follicles were 152.05±29.11 days and 12.66±2.46 while mean OV and mean testosterone was 11.20±6.86 cm3 and 4.36±1.51 Nmol/L. 74.3% females were found with PCOS. Among them Oligo-ovulation was 75.1%, Polycystic Ovary was 83.4%, and Hyperandrogenism was 85.35%. Phenotype A was the most common type. Conclusion: Total 74.3% females were found with PCOS. Hyperandrogenism was the highest followed by Polycystic Ovary and Oligo-ovulation. While Phenotype A was found most common phenotype. Keywords: Frequency, PCOS, Clinical Findings, Phenotypes
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Santulli, Pietro, Chloe Tran, Vanessa Gayet, et al. "Oligo-anovulation is not a rarer feature in women with documented endometriosis." Fertility and Sterility 110, no. 5 (2018): 941–48. http://dx.doi.org/10.1016/j.fertnstert.2018.06.012.

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Bayz, Asia, and Ishraq Shakir. "Assessment of serum insulin in polycystic ovarian syndrome." Zanco Journal of Medical Sciences 29, no. 1 (2025): 92–98. https://doi.org/10.15218/zjms.2025.010.

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Background and objective: Polycystic ovarian syndrome (PCOS) is a common endocrinological pathology affecting around 15-20 % women of reproductive age globally. The characteristic features of PCOS are hyperandrogenemia, oligo/anovulation and polycystic ovaries on imaging studies. Serum insulin level is one of the major risk factors. The aim of this study was to show the significance of the insulin level in all phenotypes of the PCOS. Methods: This cross-sectional study was carried out in the Kurdistan Region of Iraq at the Erbil Maternity Teaching Hospital. It comprised 101 women who had been unequivocally diagnosed with PCOS by laboratory and imaging studies throughout a one-year period beginning on May 2021. Results: The women's body mass index ranged from 19 to 35, while their ages ranged from 18 to 49.Phenotype A formed the largest group of patients by 39.6% and phenotype D were the smallest group by 14.9% of the total patients with significant difference in the serum insulin level between different phenotypes by P-value of (0.035). The mean insulin sensitivity in all phenotypes of PCOS were 31.05 with significance of high serum insulin level by P-value of 0.003. Conclusion: The current study found out that high serum insulin level plays a major role in the development of PCOS. Keywords: Polycystic ovarian syndrome; Hyperandrogenism; Oligo/anovulation; Reproductive age; Body mass index.
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Poonam, Thakur, Shara Komal, and Kumari Sanjna. "Systematic Review on Recognising Patterns in Incidence of Polycystic Ovarian Syndrome in Young Women." Systematic Review on Recognising Patterns in Incidence of Polycystic Ovarian Syndrome in Young Women 9, no. 1 (2024): 4. https://doi.org/10.5281/zenodo.10653865.

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PCOS is a longterm endocrinology state that is various and mostly strikes women who are considered reproductive. Periodic deviations, fertility problems, hirsuteness pimples, and overweight constitute some of those signs who often show up possibly altogether or in part. Three kinds of guidelines have been established proposed for recognising women with PCOS: the Organisation of Androgen Excess (2006), the Rotterdam criteria (2003), along with the National Academy of Health's recommendations (1992). Those three categories are composed of follicular morphology with cystic follicular on persvaginal imaging, physiological and/or molecular elevated testosterone levels, chronic oligo/anovulation, or an assortment of these medical conditionsAll categories acknowledge that beforehand an identification of PCOS is determined, additional disorders involving a condition called and/or excessive androgen levels ought to be ruled investigated.1-4 Cycles of menstruation have been used by numerous researchers and health care providers to figure out  ovulatory state. Menstrual periods of fewer than twenty- one and greater than 35 days constitute an oligo or  anovulation, yet polycystic ovarian structure is analytically notable whenever ≥12 follies with an ovarian mass that exceeds 10 ml or a radius of 2–9 mm.meanwhile the physiological alterations correlated with maturity and the clinical alterations seen in PCOS converge, all diagnostic indicators must not be utilised for evaluating young adults.(1) Keywords:- PCOD, Criteria from the Androgen Excessive Foundation and the Standards set in Rotterdam Since 2003.
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Book chapters on the topic "Oligo-/Anovulation"

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Jain, Apoorva, and Ajay Kumar Oli. "Pathomechanisms of Proteins in Polycystic Ovary Syndrome (PCOS)." In Advances in Bioinformatics and Biomedical Engineering. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-6577-6.ch009.

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Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in females of reproductive age. It is one of the main causes of infertility in females with a prevalence of 5-10%. PCOS is characterized by Oligo or anovulation, hyperandrogenism, and polycystic ovaries. PCOS is also associated with obesity, type 2 diabetes, hyperinsulinemia, insulin resistance, lipid abnormalities, and cardiovascular diseases. The early diagnosis of PCOS is complicated and complex due to the overlapping symptoms of PCOS. Genetic variance, epigenetic changes, and disturbed lifestyles lead to the development of pathophysiological disturbances and disturbed lifestyles in women. At the molecular level, different proteins and molecular and signaling pathways are involved in disease progression. Proteomics is advantageous in linking both genotype and phenotype and contributing to biomarker discovery. Investigating the molecular mechanism and proteins underlying PCOS is imperative to gain insight into pathophysiology of PCOS and formulate novel diagnostic and treatment strategies.
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Al Jashi, Isam, Claudia Mehedintu, Miruna Tanase, et al. "Myo-Inositol (ProFecund Ino) – Obtaining a Pregnancy in Women with Polycystic Ovary Syndrome." In Polycystic Ovary Syndrome - Symptoms, Causes and Treatment [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.114150.

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Polycystic ovary syndrome (PCOS), affecting 5–10% of women, is characterized by irregular ovulation and excess androgen hormones. The multifactorial causes include hormonal imbalances, insulin resistance, genetics, and obesity. Diagnosis involves identifying criteria like oligo/anovulation, hyperandrogenism, and micropolycystic ovarian appearance. Traditional treatments include progesterone-based medication and oral contraceptives. However, fertility-focused treatments such as clomiphene, metformin, purified FSH, or LH are administered for those seeking to restore fertility. This article explores “ProFecund Ino,” a myo-inositol-based treatment for PCOS. It touts benefits such as improved hormonal balance, regulated menstrual cycles, stimulated ovulation, enhanced insulin sensitivity, and positive effects on the nervous system. The study involving 200 women with PCOS showed a 38% pregnancy rate with ProFecund Ino and additional pregnancies resulted from ovarian stimulation and IVF procedures. The conclusion underscores the efficacy of myo-inositol-based treatments in conjunction with assisted reproductive techniques, significantly increasing pregnancy chances for women with PCOS.
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Tammo, Omer. "Understanding Polycystic Ovary Syndrome: A Comprehensive Guide." In Understanding Polycystic Ovary Syndrome - Symptoms, Diagnosis, and Treatment Options [Working Title]. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1010597.

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Polycystic ovary syndrome (PCOS) stands as a complex and prevalent endocrine disorder, profoundly impacting women throughout their reproductive years. Its hallmark lies in the intricate interplay of hormonal imbalances, primarily characterized by elevated androgen levels, which subsequently trigger a diverse array of clinical manifestations. These manifestations span from disruptive menstrual irregularities, such as oligomenorrhea or amenorrhea, to the visible signs of hyperandrogenism, including hirsutism, acne, and androgenic alopecia. Furthermore, PCOS extends its reach beyond reproductive health, significantly influencing metabolic functions by fostering insulin resistance, thereby escalating the risk of type 2 diabetes, dyslipidemia, and cardiovascular complications. Adding to the syndrome’s complexity are the significant psychological ramifications, often leading to increased susceptibility to anxiety, depression, and a diminished sense of self-worth. The diagnostic approach to PCOS hinges on the Rotterdam criteria, which mandates the presence of at least two of the following: oligo- or anovulation, clinical or biochemical evidence of hyperandrogenism, and the characteristic polycystic ovarian morphology as visualized through ultrasound. In terms of management, a multifaceted strategy is imperative, encompassing lifestyle modifications to mitigate insulin resistance, alongside pharmacological interventions tailored to address specific symptoms, such as hormonal therapies to regulate menstruation and antiandrogens to counteract hyperandrogenism. For women grappling with fertility challenges, assisted reproductive technologies offer viable pathways to conception. Thus, a comprehensive and individualized approach, integrating medical, lifestyle, and psychological considerations, is crucial for effectively managing PCOS and enhancing the overall well-being of affected individuals.
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Davis, Julian R. E. "Hyperprolactinaemic anovulation." In Oxford Textbook of Endocrinology and Diabetes. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780199235292.003.0846.

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Prolactin is a polypeptide hormone, named from its well-known effects to promote lactation. It is essential for successful reproduction in man and mammals, although it is known to have a wide variety of nonreproductive effects whose clinical significance remains uncertain. Hyperprolactinaemia, reflecting sustained overproduction of lactin by the pituitary, is relatively common in the population. The commonest cause is the use of drugs that have dopamine D2 receptor antagonist activity (e.g. antipsychotic agents such as phenothiazines), pregnancy and lactation are the commonest physiological causes, and short-term acute stress, such as the anxiety provoked by blood sampling, is also a frequent cause of transient rises in serum prolactin that may be misinterpreted and necessitate a second confirmatory blood sample. Pathological pituitary causes of hyperprolactinaemia may reflect a functioning pituitary prolactinoma, but in many cases no adenoma is detectable on scanning, in which case the condition is termed idiopathic or nontumoral hyperprolactinaemia. The typical clinical features that suggest hyperprolactinaemia are those of galactorrhoea and oligo-/amenorrhoea. Weight gain has been reported in hyperprolactinaemic women, as has insulin resistance. Serum prolactin levels are readily measured by most clinical biochemistry laboratories, and prolactin levels should be measured on more than one occasion, with persistent unexplained hyperprolactinaemia requiring evaluation. Patients with hyperprolactinaemia may require treatment for various reasons, including restoration of ovulatory function, maintenance of adequate oestrogenization, suppression of galactorrhoea, or reduction in size of a mass lesion. Depending on the presentation and underlying cause, there are several treatment options; the main current treatment option is dopamine agonist therapy, surgery and (rarely) radiotherapy are also used in the treatment of prolactinomas.
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