Hemospermia

血精症
  • 文章类型: Journal Article
    目的:探讨不同入路精囊镜手术的疗效及良好治疗效果的预测因素。
    方法:回顾性分析2015年1月至2021年1月在我院行精囊镜检查血精的68例患者的临床资料。根据不同的手术方式,他们分为三组:自然射精导管(方法A,45例),经尿道辅助电切术/射精管切开(方法B,14例),前列腺囊开窗(方法C,9例)。我们分析了三种手术方法的复发率和治疗效果的预测因素。
    结果:本组精囊镜检查血精后总复发率为32.35%。A三种方法术后复发率为24.44%,方法B为50.00%,方法C为44.44%,三种方法间差异无统计学意义(P>0.05)。方法A组45例患者的5个预测因子数据纳入单因素Logistic分析,结果表明,是否并发精道结石/囊肿是一个有效的预测因素(OR0.250,P=0.022),在多因素Logistic分析模型中仍然是有效的预测因子(OR0.244,P=0.010)。
    结论:经尿道精囊镜检查技术在治疗血精症时显示术后复发率低。在各种方法中,术中通过射精管使用自然孔的复发率最低。此外,精道结石/囊肿可有效预测良好的术后结局。
    OBJECTIVE: To explore the efficacy of different approaches of seminal vesiculoscopy surgery and the predictive factors of good treatment outcome.
    METHODS: A retrospective analysis of 68 patients who underwent seminal vesiculoscopy for hematospermia in our hospital from January 2015 to January 2021. According to different surgical approaches, they were divided into three groups: natural ejaculatory ducts (method A, 45 cases), assisted transurethral resection/incision of ejaculatory ducts (method B, 14 cases), fenestration in prostatic utricle (method C, 9 cases). We analyzed the recurrence rate of the three surgical approaches and the predictive factors of treatment efficacy.
    RESULTS: The total recurrence rate after the seminal vesiculoscopy for hematospermia in this group was 32.35%. The postoperative recurrence rates of the three methods were 24.44% for method A, 50.00% for method B and 44.44% for method C, and there was no significant difference among the three methods (P > 0.05). The data of five predictors of 45 cases in method A group were included in the Univariate Logistic analysis, the results suggest that whether complicated with seminal tract stones/cysts was an effective predictor (OR 0.250, P = 0.022), which was still an effective predictor in the Multivariate Logistic analysis model (OR 0.244, P = 0.010).
    CONCLUSIONS: The Transurethral seminal vesiculoscopy technique demonstrates a low postoperative recurrence rate in treating hematospermia. Among the various approaches, the intraoperative use of natural orifices through the ejaculatory duct exhibits the lowest recurrence rate. Additionally, seminal tract stones/cysts effectively predict favorable postoperative outcomes.
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  • 文章类型: Journal Article
    探讨顽固性精囊炎患者精子质量低下的分子病因,使用了接受经尿道精囊镜检查的持续性血精患者和健康志愿者的精子样本。通过经尿道精囊镜或手淫射精从精囊收集精子样品。精子质量通过WLJY-9000彩色精液分析系统分析。使用酶联免疫吸附测定(ELISA)进行精浆中肿瘤坏死因子α(TNFα)和白介素6(IL-6)的测量。用过氧化氢试剂盒进行精浆中H2O2的测量。通过蛋白质印迹分析和免疫荧光测定测量核因子红系2相关因子2(Nrf2)和磷酸化Nrf2(p-Nrf2)的蛋白质水平。低精子质量参数和炎症细胞因子水平升高(TNFα,在持续性血精患者的精液样本中检测到精浆中的IL-6和H2O2)。Nrf2和p-Nrf2在人精子细胞的细胞核和外周强烈表达,根据免疫荧光分析的结果。持续性血精患者的精子样本中Nrf2和p-Nrf2的蛋白质水平显着低于精子活力正常的健康志愿者。结果表明,Nrf2信号可能在顽固性精囊炎患者的精子质量低下中起作用。
    To investigate the molecular etiology of low sperm quality in patients with intractable spermatocystitis, spermatozoa samples from patients with persistent hematospermia undergoing transurethral seminal vesiculoscopy and healthy volunteers were utilized. Spermatozoa samples were collected from the seminal vesicles through transurethral seminal vesiculoscopy or by masturbation ejaculation. Sperm quality was analyzed by a WLJY-9000 color semen analysis system. Measurement of tumor necrosis factor alpha (TNFα) and interleukin-6 (IL-6) in the seminal plasma was performed using enzyme-linked immunosorbent assay (ELISA). Measurement of H 2 O 2 in the seminal plasma was performed with a hydrogen peroxide kit. The protein levels of nuclear factor erythroid 2-related factor 2 (Nrf2) and phosphorylated-Nrf2 (p-Nrf2) were measured by western blot analysis and immunofluorescence assays. Low sperm quality parameters and increased levels of inflammatory cytokines (TNFα, IL-6, and H 2 O 2 ) in the seminal plasma were detected among the semen samples from the patients with persistent hematospermia. Nrf2 and p-Nrf2 were strongly expressed in the nucleus and periphery of human sperm cells, according to the results of the immunofluorescence assays. The protein levels of Nrf2 and p-Nrf2 were significantly lower in the spermatozoa samples from patients with persistent hematospermia than in those from healthy volunteers with normal sperm motility. The results suggested that Nrf2 signaling might play a role in the low sperm quality of patients with intractable spermatocystitis.
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    文章类型: English Abstract
    目的:总结用活检钳治疗男性性交相关性血尿的临床经验,电凝和钬激光烧灼。
    方法:从2018年7月至2022年4月,我们使用活检钳治疗了11例男性性交相关血尿患者,电凝和钬激光烧灼。患者的年龄从29岁到47岁不等,伴有肉眼血尿的临床表现,在性交或勃起后,从尿道口滴血或尿液中的血凝块,3患有血精症,但没有痛苦。所有患者术前均接受泌尿外科影像学检查,以排除上尿路和膀胱病变。在操作过程中,在所有病例中,在膀胱尿道镜下在后尿道周围发现静脉曲张,5后静脉曲张有活动性出血。3例血精症患者首先进行了经前列腺精囊精囊镜检查。根据静脉曲张的范围和数量,5例患者采用电切镜电凝治疗,2采取钬激光烧灼法,其他4用活检钳破坏血管组织。手术后,导尿管保留3-7天,禁欲持续了30天,随访6个月。
    结果:所有病例均顺利完成手术,10例预后良好,无复发。在电切镜下电凝治疗的患者中,有1例患者术后偶尔出现血尿和尿液中的血凝块,术后3个月出现排尿困难,他们接受了反复的电凝术,此后没有更多的复发。术后均有不同程度的尿道刺激和肉眼血尿,在1-4周内自发消失,没有像ED这样的并发症,射精疼痛,射精困难和射精无力。
    结论:在没有其他泌尿生殖系统疾病的情况下,无痛性血尿,男性性交后尿液中的血凝块或甚至排尿困难可被认为是后尿道眩晕周围可能的静脉曲张的结果,可以通过用活检钳破坏血管组织来令人满意地治疗,根据位置用电切镜电凝或钬激光烧灼,静脉曲张的数量和程度。
    OBJECTIVE: To summarize the clinical experience in the treatment of sexual intercourse-related hematuria in males using biopsy forceps, electrocoagulation and holmium laser cauterization.
    METHODS: From July 2018 to April 2022, we treated 11 male patients with intercourse-related hematuria using biopsy forceps, electrocoagulation and holmium laser cauterization. The patients ranged in age from 29 to 47 years, with clinical manifestations of gross hematuria, blood dripping from the urethral orifice or blood clots in the urine after sexual intercourse or erection, 3 with hemospermia, but none with pain. All the patients received urological imaging examination to exclude lesions in the upper urinary tract and bladder preoperatively. During the operation, varicose vessels were found around the posterior urethral verumontanum under the cystourethroscope in all the cases, 5 with active bleeding in the posterior varicose vessel. The 3 cases with hemospermia first underwent trans-prostatic utricle seminal vesiculoscopy. According to the range and number of varicose vessels, 5 of the patients were treated by electrocoagulation with the resectoscope, 2 by holmium laser cauterization and the other 4 with biopsy forceps to destroy the vascular tissue. After the operation, urinary catheters were retained for 3-7 days, abstinence lasted 30 days, and the patients were followed up for 6 months.
    RESULTS: The operations were successfully completed in all the cases, 10 with good prognosis and none with recurrence. Occasional postoperative hematuria and blood clots in the urine were observed in 1 of the patients treated by electrocoagulation under the resectoscope, with dysuria at 3 months after operation, who underwent repeated electrocoagulation and experienced no more recurrence thereafter. Different degrees of postoperative urethral irritation and gross hematuria were found in all the cases, which spontaneously disappeared within 1-4 weeks, with no such complications as ED, ejaculation pain, ejaculation difficulty and ejaculation weakness.
    CONCLUSIONS: In the absence of other genitourinary diseases, painless hematuria, blood clots in the urine or even dysuria in males after sexual intercourse can be considered as the results of possible varicose veins around the posterior urethral verumontanum, which can be treated satisfactorily by destroying the vascular tissue with biopsy forceps, electrocoagulation with the resectoscope or holmium laser cauterization according to the location, number and degree of varicose veins.
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  • DOI:
    文章类型: English Abstract
    目的:探讨经尿道精囊镜治疗难治性血精症的临床疗效及安全性。
    方法:通过前列腺囊使用6Fr输尿管镜检查,我们治疗了103例难治性血精症伴远端精管梗阻性病变,其中并发远端精管囊肿12例。我们冲洗精管腔,清理石头,经钬激光切除囊肿壁,术后随访12个月。
    结果:所有病例均顺利完成手术,但1例(0.9%),其中输尿管镜未能进入双侧精囊。手术时间为(47±9)min。术中无直肠损伤或急性附睾炎发生,也不发烧,手术后长期排尿困难或长期血尿。术后随访发现93例(90.3%)精液血性症状消失,4个(3.9%)显著改善,2个(1.9%)没有显著改善,复发3例(2.9%)经再次手术后全部缓解。
    结论:经精囊镜检查具有清晰的解剖视野,在难治性血精症的治疗中具有轻微的侵入性和显着的有效性。更重要的是,钬激光在去除囊壁方面优于等离子切除术。
    OBJECTIVE: To investigate the clinical effect and safety of transutricular seminal vesiculoscopy in the treatment of refractory hemospermia.
    METHODS: Using 6Fr ureteroscopy through the prostatic utricle, we treated 103 cases of refractory hemospermia with distal seminal duct obstructive lesions, including 12 cases complicated by distal seminal duct cyst. We rinsed the seminal duct cavity, cleaned out the stones, removed the cyst wall with holmium laser and followed up the patients for 12 months postoperatively.
    RESULTS: The operations were successfully completed in all the cases but 1 (0.9%), in which the ureteroscope failed to enter the bilateral seminal vesicles. The operation time was (47 ± 9) min. No rectal injury or acute epididymitis occurred intraoperatively, nor fever, long-term dysuria or long-term hematuria after surgery. Postoperative follow-up showed that bloody semen symptoms vanished in 93 (90.3%) of the cases, improved significantly in 4 (3.9%) and not significantly in 2 (1.9%), and 3 cases of recurrence (2.9%) were all relieved after reoperation.
    CONCLUSIONS: Transutricular seminal vesiculoscopy has the advantages of clear anatomic vision, minor invasiveness and significant effectiveness in the treatment of refractory hemospermia. What\'s more, holmium laser is better than plasmakinetic resection in removal of the cyst wall.
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  • 文章类型: Case Reports
    Zinner综合征是一种罕见的先天性畸形,以同侧肾发育不全为特征,射精管闭锁,精囊的囊性扩张。症状通常出现在青春期或成年期,可能包括排尿疼痛,会阴不适,和射精后疼痛.诊断,通常在20到50岁之间,涉及使用膀胱镜检查等技术将Zinner综合征与其他囊性疾病区分开来,MRI,静脉尿路造影,还有经直肠超声.治疗根据症状的严重程度而有所不同,从保守的方法到侵入性手术。定期随访对于确定并发症和保持生育能力至关重要。在这里,我们介绍了一名27岁男性,患有复发性阴囊肿胀和红斑,偶然诊断为Zinner综合征。该患者有复发性附睾炎病史,并发现精囊囊性扩张,同侧肾发育不全,影像学上左侧射精管阻塞。鉴于病人的轻微症状,他接受了抗生素和止痛药的保守治疗,导致显著的改善。
    Zinner syndrome is a rare congenital malformation characterized by ipsilateral renal agenesis, atresia of the ejaculatory duct, and cystic distension of the seminal vesicles. Symptoms typically arise in adolescence or adulthood and may include painful urination, perineal discomfort, and post-ejaculatory pain. Diagnosis, often made between the ages of 20 and 50 years, involves differentiating Zinner syndrome from other cystic disorders using techniques such as cystoscopy, MRI, intravenous urography, and transrectal ultrasound. Treatment varies based on symptom severity, ranging from conservative approaches to invasive surgeries. Regular follow-up is essential to identify complications and preserve fertility. Herein, we present a 27-year-old male with recurrent scrotal swelling and erythema incidentally diagnosed with Zinner syndrome. The patient had a history of recurrent epididymitis and was found to have cystic dilatation of the seminal vesicle, ipsilateral renal agenesis, and obstruction of the left ejaculatory duct on imaging. Given the patient\'s mild symptoms, he was managed conservatively with antibiotics and pain medication, resulting in significant improvement.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    背景:血精症最常见的已知原因是泌尿生殖道感染,但目前还没有研究全面调查急性附睾炎患者的血精。
    目的:评估血精对急性附睾炎患者的影响及其与临床,微生物和精液参数。
    方法:自2007年5月以来,在一项前瞻性队列研究中招募了324名性活跃的急性附睾炎患者。患者接受了全面的病史和性史,临床,超声检查,实验室和微生物诊断。根据EAU指南给予抗生素治疗。首次治疗和开始治疗后14天提供精液分析。自2013年以来,前瞻性招募了一个由56名表现为孤立性血精症(=无其他泌尿生殖症状)的患者组成的单独对照组,并对组间差异进行统计学评价。
    结果:在324例急性附睾炎患者中,50例患者(15%)自我报告有血精症。这发生在阴囊症状发作前24小时的中位数,与274例无血精症患者相比,PSA水平显着升高(3.1vs.1.8ng/ml,p<0.01)。两种最常见的病原为大肠埃希菌和沙眼衣原体,并且两个附睾炎亚组的细菌谱具有可比性(p=0.859)。14天时的精液分析仍显示24%的患者伴有大量白细胞精子症。与血精对照组相比,两个附睾炎亚组显示炎症标志物显著增加(pH,白细胞,弹性蛋白酶),精子浓度降低,和降低的α-葡萄糖苷酶和锌的水平(总是p<0.01)。
    结论:在发生急性附睾炎的性活跃患者中,15%的患者早在阴囊症状出现前一天就出现了明显的自报血精症.相反,出现孤立性血精症的56例患者在接下来的4周内均未出现附睾炎.本文受版权保护。保留所有权利。
    BACKGROUND: Among the most commonly known causes of hematospermia are infections in the genitourinary tract, but no study exists that has comprehensively investigated hematospermia in patients with acute epididymitis.
    OBJECTIVE: To assess the impact of hematospermia in patients with acute epididymitis and its association with clinical, microbiological, and semen parameters.
    METHODS: Since May 2007, a total of 324 sexually active patients with acute epididymitis were recruited in a prospective cohort study. Patients received a comprehensive medical and sexual history, and clinical, sonographic, laboratory, and microbiological diagnostics. Antibiotic therapy was given according to European Association of Urology guidelines. Semen analysis was offered 14 days after the first presentation and initiation of therapy. Since 2013, a separate control group of 56 patients presenting with isolated hematospermia (= no other urogenital symptoms) was prospectively recruited, and differences between the groups were statistically evaluated.
    RESULTS: Of 324 patients with acute epididymitis, 50 patients (15%) had self-reported hematospermia. This occurred with a median of 24 h before the onset of scrotal symptoms and was associated with significantly elevated prostate-specific antigen levels compared to 274 patients without hematospermia (3.1 vs. 1.8 ng/ml, p < 0.01). The two most common etiological pathogens were Escherichia coli and Chlamydia trachomatis, and the bacterial spectrum was comparable in both epididymitis subgroups (p = 0.859). Semen analysis at 14 days still showed hematospermia in 24% of patients associated with massive leukocytospermia. Compared to the hematospermia control group, the two epididymitis subgroups showed significantly increased inflammation markers (pH, leukocytes, and elastase), reduced sperm concentration, and reduced levels of alpha-glucosidase and zinc (always p < 0.01).
    CONCLUSIONS: In sexually active patients who develop acute epididymitis, self-reported hematospermia is evident in 15% of patients as early as one day before the onset of scrotal symptoms. Conversely, none of the 56 patients presenting with isolated hematospermia developed epididymitis within the next 4 weeks.
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  • 文章类型: Review
    背景:血精症(HS)是射精液中存在血液。这是一种罕见的疾病,是历史上特发性或与性行为有关。技术进步已经确定了HS背后的许多病因,改善治疗。虽然通常是良性的,HS仍然是患者严重性焦虑的来源。很少有论文概述了HS的诊断和治疗方法,没有人明确解决它的性后果。
    目的:为全面概述HS,强调它的性后果。
    方法:到2021年5月进行了PubMed文献检索,以确定与病因学相关的所有相关出版物,诊断,治疗,和HS的性影响。对原始研究和评论进行了分析,相关研究纳入本综述.
    结果:医源性干预措施(例如,经直肠超声引导下的前列腺活检)是HS的最常见原因。感染和/或非特异性炎症是最常见的非医源性病因。恶性肿瘤,包括前列腺,睾丸,和其他泌尿生殖系统癌症,很少是HS的原因。可以根据患者年龄(小于或大于40岁)组织HS的诊断方法,持续出血,以及相关症状的存在/不存在。尽管HS经常自发解决,治疗可能需要各种药物(例如,抗生素,抗炎药)或手术干预。HS有几个性影响,包括影响性欲的焦虑,性伴侣和非性附属机构的社会影响,勃起功能障碍或性传播感染的风险增加,生育能力受损,特别是当使用冷冻保存时。
    结论:HS可能通过多种机制显著影响性健康,尽管关于这个问题的正式数据很少。需要进一步的研究来充分了解HS对性生活的影响的严重程度和程度,尤其是那些顽固性出血的患者.
    Hematospermia (HS) is the presence of blood in ejaculatory fluid. It is a rare condition that is historically idiopathic or associated with sexual behavior. Technological advances have identified many of the etiologies behind HS, improving treatment. Though often benign, HS remains a source of considerable sexual anxiety for patients. Few papers have outlined a diagnostic and therapeutic approach to HS, and none have explicitly addressed its sexual consequences.
    To provide a comprehensive overview of HS, emphasizing its sexual ramifications.
    A PubMed literature search was performed through May 2021 to identify all relevant publications related to etiology, diagnosis, treatment, and sexual effects of HS. Original research and reviews were analyzed, and pertinent studies were included in this review.
    Iatrogenic interventions (eg, transrectal ultrasound-guided prostate biopsies) are the most common cause of HS. Infection and/or nonspecific inflammation is the most common non-iatrogenic etiology. Malignancies, including prostate, testicular, and other genitourinary cancers, are rarely the cause of HS. Diagnostic approaches to HS can be organized according to patient age (less than or greater than 40 years old), persistence of bleeding, and the presence/absence of concerning symptoms. Though HS often spontaneously resolves, treatment may require various medications (eg, antibiotics, anti-inflammatories) or surgical interventions. HS has several sexual ramifications, including libido-affecting anxiety, social repercussions from sexual partners and non-sexual affiliates, increased risk of erectile dysfunction or transmission of sexual infections, and compromised fertility, especially when cryopreservation is utilized.
    HS may significantly affect sexual health through several mechanisms, though there is a paucity of formal data on this subject. Further research is needed to fully understand the severity and extent of HS\'s effect on sexual well-being, especially in those with refractory bleeding.
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  • DOI:
    文章类型: Journal Article
    血精症是用于描述精液中血液存在的医学术语。它可能由于各种原因而发生,并且可能是良性或严重的状况。本研究旨在确定在医院诊所就诊的患者中血精症的患病率和特征。要做到这一点,共招募了44名患者,并对其人口统计学差异进行了表征,症状,严重程度,相关疾病,并测量前列腺特异性抗原(PSA)。结果证实,患者为中年(约40岁),血精症的持续时间(天)约为16±12。这些患者中只有少数显示出与慢性疾病如高血压和糖尿病或其他血管疾病有关。这些患者中有不到50%的患者有手术史,其中很少有人使用抗凝剂16±12。大多数患者患有无痛性精子症,而仅(13.6%)患有疼痛性精子症,在(13.6%)中发现了刺激性的泌尿症状,而在(4.5%)中发现了阻塞性的泌尿症状。腹部超声(美国)检查,骨盆,其中50%以上的阴囊正常,而其他人则表现出前列腺受累。这些患者中很少有在实验室检查中出现脓液。总而言之,在我们的样本中,血精症被认为是一种不方便的疾病,会干扰日常生活质量,对该病的病因及其进展没有明确的了解。
    Haematospermia is the medical term used to describe the presence of blood in semen. It can occur due to a variety of reasons and can be a benign or serious condition. The present study aimed to identify the prevalence and characterization of haematospermia in patients visiting hospital clinics. To do so, a total of 44 patients were recruited and characterized regarding their demographic variation, symptoms, severity, associated diseases, and measured prostate-specific-antigen (PSA). Results confirmed that patients were middle-aged (around 40 years) and the duration (days) of haematospermia is around 16±12. Only a few of these patients have shown an association with chronic diseases such as hypertension and diabetes or other vascular diseases. Less than 50% of these patients have shown past-surgical history and few of them were using anticoagulants 16±12. The majority of patients had painless haematospermia while only (13.6%) had painful haematospermia, irritative urinary symptoms were found in (13.6%) while obstructive urinary symptoms in (4.5%). Ultrasound (US) examination of the abdomen, pelvis, and scrotum was normal in more than 50% of them while others have shown prostatic involvement. Few of these patients experienced pus on laboratory examination. To sum up, haematospermia is represented as an inconvenient disease in our sample leading to interference with daily quality of life, with no clear understanding aetiology of the disease and its progression.
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  • 文章类型: Journal Article
    背景:目前,尚无公认的证据表明,在患有难治性血精子症的男性精囊(SV)内发现了细菌群落。
    结果:纳入15例男性难治性血精症或射精患者,和15个SV感染(SV-In)样本,包括出血和/或结石,11个来自非感染SV的SV对照(SV-C)样品,通过经尿道精囊镜从后尿道获得14个尿液(尿液)样本。然后进行高通量16SrRNA基因测序方法以表征微生物区系谱。最后,共发现1535个操作分类单位(OTU),1295个OTU在三组之间共享,7个OTU,45个OTU,48个OTU是SV-C组独有的,SV-In组,尿组,分别。所有样品中5个最高的细菌门(平均相对丰度)是Firmicutes(52.08%),拟杆菌(21.69%),变形杆菌(12.72%),放线菌(9.64%),和镰刀菌(1.62%),所有样本中排名前5位的细菌属为拟杆菌(9.13%),乳酸菌(5.38%),双歧杆菌(5.35%),粪杆菌(5.10%),和Allobaculum(3.34%),其中双歧杆菌在SV-C样品中的水平最高,并且在所有组之间具有显着差异(P<0.05)。差异分析显示明串珠菌属和LachnospiaceaFCS020组被鉴定为SV-In微生物群中的生物标志物。
    结论:精囊菌群组成的改变与男性难治性血精有关,精囊内明串珠菌属或LachnospienceFCS020组的分布可能与血精相互作用。本研究为该泌尿系疾病的诊断和治疗提供线索。
    BACKGROUND: Currently, no recognized evidence is known about the bacterial communities found within seminal vesicles (SV) of men presenting with refractory hematospermia.
    RESULTS: Fifteen male patients with refractory hematospermia or anejaculation were enrolled, and 15 SV-Infection (SV-In) samples from SV with hemorrhage and/or stones, 11 SV-Control (SV-C) samples from SV with non-infection, and 14 Urine (Urine) samples from posterior urethra were obtained via transurethral seminal vesiculoscopy. Then the high-throughput 16 S rRNA gene sequencing method was performed to characterize the microbiota profile. Finally, a total of 1535 operational taxonomic units (OTUs) were found, 1295 OTUs were shared across three groups, 7 OTUs, 45 OTUs, and 48 OTUs were unique to SV-C group, SV-In group, and Urine group, respectively. The 5 top bacterial phyla (mean relative abundance) in all samples were Firmicutes (52.08%), Bacteroidetes (21.69%), Proteobacteria (12.72%), Actinobacteria (9.64%), and Fusobacteria (1.62%), the 5 top bacterial genera in all samples were Bacteroides (9.13%), Lactobacillus (5.38%), Bifidobacterium (5.35%), Faecalibacterium (5.10%), and Allobaculum (3.34%), of which Bifidobacterium had the highest level in SV-C samples and had a significant difference (P < 0.05) across all groups. Differential analysis showed genera Leuconostoc and LachnospiraceaeFCS020group were identified as biomarkers in the SV-In microbiota.
    CONCLUSIONS: Altered microbiota composition in seminal vesicles is related to refractory hematospermia in men, and the distribution of genus Leuconostoc or LachnospiraceaeFCS020group within seminal vesicles may interact with hematospermia. This study provides clues for the diagnosis and treatment of this urologic disorder.
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