Hyun Jun Park

Dr. Hyun Jun Park graduated from Pusan National University College of Medicine, Korea, in 1998 and first joined the Department of Urology at his alma mater in 2004 as a professor. He has been serving as an editor in chief for the World Journal of Men’s Health. He has also been active in various academic societies, including International Society for Sexual Medicine (Publication committee member), Asian Society for Men’s Health and Aging (President), Asia-Pacific Society for Sexual Medicine (publication committee director), Korean Association for Sexology, Korean Society for Sexual Medicine and Andrology, Korean Society for Men’s Health and Aging (academic committee director), and Korean Society for Reproductive Medicine. Currently he is working as professor in the department of Urology, Pusan National University School of Medicine and Pusan National University Hospital. The main focus of his clinical and research interests lies in sexual medicine, male infertility, and prostate diseases. He has authored or co-authored more than 160 peer-reviewed publications in international journals.

17th August 2025

Time Session
10:30
12:00
Innovations in Male Infertility and Reproductive Health
  • Hyun Jun Park Korea (Republic of) Moderator The Evolutionary Role of Varicocelectomy in Andrology Varicocelectomy is among the most commonly performed surgical procedures in contemporary andrological practice. Historically, varicocele management focused primarily on alleviating symptomatic discomfort and addressing infertility characterized by impaired semen parameters. However, the conceptual framework and indications for varicocelectomy have evolved significantly over recent decades, reshaping its clinical implications and expanding its therapeutic potential. Initially, open surgical approaches such as retroperitoneal and inguinal varicocelectomy were predominant, yet they carried considerable risks, including recurrence, hydrocele formation, and potential damage to testicular arteries. With the advent of microsurgical techniques, particularly subinguinal microsurgical varicocelectomy, procedural efficacy and safety have markedly improved. This has resulted in reduced complication rates and enhanced fertility outcomes, positioning microsurgical varicocelectomy as the current gold standard. Modern andrological literature emphasizes varicocelectomy’s broader physiological benefits beyond fertility. Recent studies highlight its role in improving testosterone production, mitigating hypogonadism, and enhancing overall testicular function. Additionally, varicocelectomy has been demonstrated to significantly improve sperm DNA integrity and reduce oxidative stress levels, thus positively impacting assisted reproductive technology (ART) outcomes. Furthermore, contemporary research suggests that varicocelectomy may provide systemic health benefits by reducing chronic inflammation and oxidative damage, conditions associated with metabolic and cardiovascular disorders. This evolving understanding positions varicocelectomy not merely as a fertility treatment but as an integral part of comprehensive male reproductive health management. These insights prompt a proactive approach, encouraging clinicians to recognize varicocelectomy’s extended potential in enhancing male reproductive longevity and general health. In conclusion, the evolution of varicocelectomy, characterized by advancements in surgical techniques and expanded clinical indications, underscores its significant role in modern andrology. An integrated appreciation of its multifaceted therapeutic benefits facilitates informed clinical decision-making, ultimately enhancing patient care and outcomes in andrological practice.
  • Hui-Ying LiuTaiwan Speaker Recent Advances in Fertility Preservation for Young Male Cancer SurvivorsTesticular cancer (TC) is the most common malignancy in men of reproductive age and significantly impacts fertility through both direct tumor effects and subsequent gonadotoxic treatments. Tumor-related factors such as testicular parenchymal destruction, intratesticular obstruction, elevated β-HCG levels, oxidative stress, and disruption of the hypothalamic–pituitary–gonadal axis contribute to impaired spermatogenesis and sperm DNA fragmentation. Cancer treatments including orchiectomy, chemotherapy (especially cisplatin-based regimens), retroperitoneal lymph node dissection, and radiotherapy further increase the risk of oligo- or azoospermia, with long-term recovery of spermatogenesis often taking up to 2–4 years. Despite these risks, less than one-third of patients undergo sperm cryopreservation before treatment, even though up to 50% present with abnormal semen parameters at diagnosis. Onco-TESE and electroejaculation serve as viable alternatives in select patients, while emerging evidence supports the use of testis-sparing strategies and real-time sperm retrieval in appropriate cases. Current data emphasize the necessity of early fertility counseling and preservation planning for all men diagnosed with TC. Given the high cure rate and young patient demographic, optimizing reproductive outcomes is a key component of survivorship care.
  • So InamuraJapan Speaker Chronic Pelvic Pain Syndrome (CPPS): New Insights and Therapeutic Approaches Chronic Pelvic Pain Syndrome (CP/CPPS) is a complex condition characterized by a combination of pelvic pain or discomfort and lower urinary tract symptoms (LUTS), including both storage and voiding issues. The pathophysiology is multifaceted, often originating from prostatic inflammation which contributes to both LUTS and pelvic pain. The condition is frequently exacerbated by the involvement of neurogenic inflammation and central sensitization, which can cause pain to spread and amplify, creating a negative spiral of symptoms that significantly impairs patients' quality of life (QOL). This presentation reviews the current understanding of CP/CPPS pathophysiology and outlines therapeutic options. In general, treatment primarily relies on conventional drug therapies such as α1 blockers, anti-inflammatory agents, neuropathic medications, phosphodiesterase 5 inhibitors (PDE5 inhibitors), and phytotherapeutics. These treatments aim to manage symptoms by improving bladder outlet obstruction (BOO), suppressing inflammation, enhancing pelvic blood flow, and modulating pain signals. While various treatment options exist, their effectiveness varies significantly among individuals, underscoring the need for a patient and individualized approach to find a suitable regimen. Furthermore, emerging treatments such as Extracorporeal Shockwave Therapy (ESWT) have shown significant promise in improving pain and QOL and are recommended in international guidelines. In conclusion, effective management of CP/CPPS requires consideration of its complex mechanisms, including prostatic inflammation, neurogenic inflammation, and central sensitization. A patient, trial-and-error approach is essential to identify the most effective treatment for each individual.
  • Hyun Jun Park Korea (Republic of) Speaker The Evolutionary Role of Varicocelectomy in Andrology Varicocelectomy is among the most commonly performed surgical procedures in contemporary andrological practice. Historically, varicocele management focused primarily on alleviating symptomatic discomfort and addressing infertility characterized by impaired semen parameters. However, the conceptual framework and indications for varicocelectomy have evolved significantly over recent decades, reshaping its clinical implications and expanding its therapeutic potential. Initially, open surgical approaches such as retroperitoneal and inguinal varicocelectomy were predominant, yet they carried considerable risks, including recurrence, hydrocele formation, and potential damage to testicular arteries. With the advent of microsurgical techniques, particularly subinguinal microsurgical varicocelectomy, procedural efficacy and safety have markedly improved. This has resulted in reduced complication rates and enhanced fertility outcomes, positioning microsurgical varicocelectomy as the current gold standard. Modern andrological literature emphasizes varicocelectomy’s broader physiological benefits beyond fertility. Recent studies highlight its role in improving testosterone production, mitigating hypogonadism, and enhancing overall testicular function. Additionally, varicocelectomy has been demonstrated to significantly improve sperm DNA integrity and reduce oxidative stress levels, thus positively impacting assisted reproductive technology (ART) outcomes. Furthermore, contemporary research suggests that varicocelectomy may provide systemic health benefits by reducing chronic inflammation and oxidative damage, conditions associated with metabolic and cardiovascular disorders. This evolving understanding positions varicocelectomy not merely as a fertility treatment but as an integral part of comprehensive male reproductive health management. These insights prompt a proactive approach, encouraging clinicians to recognize varicocelectomy’s extended potential in enhancing male reproductive longevity and general health. In conclusion, the evolution of varicocelectomy, characterized by advancements in surgical techniques and expanded clinical indications, underscores its significant role in modern andrology. An integrated appreciation of its multifaceted therapeutic benefits facilitates informed clinical decision-making, ultimately enhancing patient care and outcomes in andrological practice.
  • I-Shen HuangTaiwan Speaker New Horizons in Clinical Predictors for Sperm Retrieval in Non-Obstructive Azoospermia Patients
  • Yu-Sheng ChengTaiwan Speaker DNA Fragmentation’s Impact on Male Infertility: Advanced molecular approaches in male infertility diagnosis Semen analysis remains the cornerstone to accessing male fertility potential despite many drawbacks and fails to predict the male fertility potential with high sensitivity and specificity. The integrity of sperm DNA is crucial for successful fertilization, embryo growth, and the precise transmission of genetic information to progeny. Increasing research suggests that higher sperm DNA fragmentation (SDF) may correlate with clinical varicocele, unexplained infertility, recurrent pregnancy loss, and offspring health. Currently, several tests are available to assess sperm DNA fragmentation in clinical settings. The degree of sperm DNA damage can be measured using the sperm DNA fragmentation index (DFI), which provides more insight into the quality of sperm. Recently, several laboratories have integrated SDF testing into routine semen analysis for the assessment of male infertility. Nonetheless, several aspects of SDF remain unresolved. This presentation will provide an introduction to existing SDF assays, including recent innovative tests for double-strand breaks (DSBs) in human ejaculated sperm, as well as a discussion on the clinical indications for SDF testing based on recent scientific findings.
  • Vincent FS TsaiTaiwan Speaker The Role of Artificial Intelligence in Male Infertility: Innovations in Diagnosis and Treatment Optimization Artificial Intelligence (AI) is reshaping the landscape of reproductive medicine by offering unprecedented precision, personalization, and predictive power. This presentation introduces some current AI-integrated fertility projects, designed to enhance outcomes across both pre- and post-fertilization stages. We begin with a brief overview of AI’s transformative role in healthcare, before delving into the scope. In the pre-fertilization phase, we leverage AI tools for semen analysis, enabling rapid and objective assessment of sperm quality---a home semen test. Advanced image recognition aids in tissue classification, while robotic precision enhances microsurgical interventions. Additionally, machine learning algorithms provide nuanced risk prediction to support clinical decision-making. Post-fertilization, some systems apply AI-driven models for embryo selection and manipulation, optimizing implantation potential. Predictive analytics further extend to embryonic development, offering clinicians early insights that support successful pregnancies. Together, these innovations illustrate how AI can augment every stage of the fertility journey—offering not only efficiency but also a hopeful future for prospective parents.
TICC - 2F 201DE
13:30
15:00
Andrology (D)
Chuan-Shu ChenTaiwan Moderator Severity of sexual dysfunction in Taiwanese patients with and without type 2 diabetes mellitus.introduction Patients with type 2 diabetes are at a higher risk of developing sexual dysfunction. This study aims to investigate the current prevalence of sexual dysfunction in Taiwanese patients with and without type 2 diabetes mellitus(DM) and to explore patterns in how affected individuals seek management or treatment for this condition. Materials and Methods Between June 2023 and October 2024, a total of 450 patients visiting our urology outpatient department were invited to complete a questionnaire comprising the Men's Sexual Health Questionnaire (MSHQ) and supplementary questions assessing patterns of seeking management for sexual dysfunction. Results Of the 402 subjects who completed the questionnaire, 28.1% (113/402) had type 2 diabetes mellitus (DM). Among patients with varying degrees of sexual dysfunction, those in the DM group reported significantly greater severity across all domains of the MSHQ—erection, ejaculation, satisfaction, frequency of sexual activity, and sexual desire—compared to the non-DM group. After applying propensity score matching for age and comorbid chronic diseases, the scores in each domain were as follows (DM group vs. non-DM group): erection (9.55 vs. 10.94, p = 0.028), ejaculation (25.87 vs. 28.26, p = 0.012), sexual desire (12.38 vs. 13.34, p = 0.020), satisfaction (20.51 vs. 21.64, p = 0.112), and frequency of sexual activity (10.29 vs. 10.58, p = 0.465). Notably, 73% of patients with DM expressed a desire to discuss sexual health issues with their physicians. However, only 10% reported that their doctors had initiated such conversations. The most commonly cited reason for not discussing sexual problems was feeling embarrassed. Additionally, 54% of DM patients with sexual dysfunction reported receiving no form of management, despite 57% expressing interest in treatment. Conclusions The prevalence of sexual dysfunction and related concerns was high among diabetic patients; however, only a small proportion had sought professional help. Routine screening for sexual dysfunction in patients with diabetes is therefore recommended.
Hyun Jun Park Korea (Republic of) Moderator The Evolutionary Role of Varicocelectomy in Andrology Varicocelectomy is among the most commonly performed surgical procedures in contemporary andrological practice. Historically, varicocele management focused primarily on alleviating symptomatic discomfort and addressing infertility characterized by impaired semen parameters. However, the conceptual framework and indications for varicocelectomy have evolved significantly over recent decades, reshaping its clinical implications and expanding its therapeutic potential. Initially, open surgical approaches such as retroperitoneal and inguinal varicocelectomy were predominant, yet they carried considerable risks, including recurrence, hydrocele formation, and potential damage to testicular arteries. With the advent of microsurgical techniques, particularly subinguinal microsurgical varicocelectomy, procedural efficacy and safety have markedly improved. This has resulted in reduced complication rates and enhanced fertility outcomes, positioning microsurgical varicocelectomy as the current gold standard. Modern andrological literature emphasizes varicocelectomy’s broader physiological benefits beyond fertility. Recent studies highlight its role in improving testosterone production, mitigating hypogonadism, and enhancing overall testicular function. Additionally, varicocelectomy has been demonstrated to significantly improve sperm DNA integrity and reduce oxidative stress levels, thus positively impacting assisted reproductive technology (ART) outcomes. Furthermore, contemporary research suggests that varicocelectomy may provide systemic health benefits by reducing chronic inflammation and oxidative damage, conditions associated with metabolic and cardiovascular disorders. This evolving understanding positions varicocelectomy not merely as a fertility treatment but as an integral part of comprehensive male reproductive health management. These insights prompt a proactive approach, encouraging clinicians to recognize varicocelectomy’s extended potential in enhancing male reproductive longevity and general health. In conclusion, the evolution of varicocelectomy, characterized by advancements in surgical techniques and expanded clinical indications, underscores its significant role in modern andrology. An integrated appreciation of its multifaceted therapeutic benefits facilitates informed clinical decision-making, ultimately enhancing patient care and outcomes in andrological practice.
Yu-Sheng ChengTaiwan Moderator DNA Fragmentation’s Impact on Male Infertility: Advanced molecular approaches in male infertility diagnosis Semen analysis remains the cornerstone to accessing male fertility potential despite many drawbacks and fails to predict the male fertility potential with high sensitivity and specificity. The integrity of sperm DNA is crucial for successful fertilization, embryo growth, and the precise transmission of genetic information to progeny. Increasing research suggests that higher sperm DNA fragmentation (SDF) may correlate with clinical varicocele, unexplained infertility, recurrent pregnancy loss, and offspring health. Currently, several tests are available to assess sperm DNA fragmentation in clinical settings. The degree of sperm DNA damage can be measured using the sperm DNA fragmentation index (DFI), which provides more insight into the quality of sperm. Recently, several laboratories have integrated SDF testing into routine semen analysis for the assessment of male infertility. Nonetheless, several aspects of SDF remain unresolved. This presentation will provide an introduction to existing SDF assays, including recent innovative tests for double-strand breaks (DSBs) in human ejaculated sperm, as well as a discussion on the clinical indications for SDF testing based on recent scientific findings.
TICC - 1F 101D