Sperm Morphology Assessment in the Era of Intracytoplasmic Sperm Injection: Reliable Results Require Focus on Standardization, Quality Control, and Training
Open accessAbstract
Semen analysis is the first, and frequently, the only step in the evaluation of male fertility. Although the laboratory procedures are conducted according to the World Health Organization (WHO) guidelines, semen analysis and especially sperm morphology assessment is very difficult to standardize and obtain reproducible results. This is mainly due to the highly subjective nature of their evaluation. ICSI is the choice of treatment when sperm morphology is severely abnormal (teratozoospermic). Hence, the standardization of laboratory protocols for sperm morphology evaluation represents a fundamental step to ensure reliable, accurate and consistent laboratory results that avoid misdiagnoses and inadequate treatment of the infertile patient. This article aims to promote standardized laboratory procedures for an accurate evaluation of sperm morphology, including the establishment of quality control and quality assurance policies. Additionally, the clinical importance of sperm morphology results in assisted reproductive outcomes is discussed, along with the clinical management of teratozoospermic patients.
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The assessment of sperm morphology continues to be one of the most challenging assessments due to its very subjective nature, which results in difficulties in standardization and achieving consistent and reproducible findings.
“However, the assessment of sperm morphology continues to be one of the most challenging assessments due to its very subjective nature which results in difficulties in standardization and achieving consistent and reproducible findings (12).”
From Isolated teratozoospermia: revisiting its relevance in male infertility: a narrative review (2024) · cites this paper as [12]
Morphological assessment can be highly subjective, with high intra- and inter-laboratory variations resulting in questionable reliability and high heterogeneity of the available evidence.
“To further complicate matters, morphological assessment can be highly subjective, with high intra- and inter-laboratory variations resulting in questionable reliability and high heterogeneity of the available evidence (12).”
From Isolated teratozoospermia: revisiting its relevance in male infertility: a narrative review (2024) · cites this paper as [12]
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The international glossary on infertility and fertility care, 2017
Zegers-Hochschild, F., Adamson, G. D., Dyer, S., Racowsky, C., de Mouzon, J., Sokol, R., Rienzi, L., Sunde, A., Schmidt, L., Cooke, I. D., et al. (2017) · Human Reproduction · doi:10.1093/humrep/dex234 · Cited by 1,320 · see citing works
The evaluation of morphological characteristics of human spermatozoa according to stricter criteria
Menkveld, R., Stander, F. S. H., Kotze, T. J. V., Kruger, T. F., & Zyl, J. A. V. (1990) · Human Reproduction · doi:10.1093/oxfordjournals.humrep.a137150 · Cited by 677 · see citing works
Smith, R., Kovac, J., Cajipe, M., Lamb, D., & Lipshultz, L. (2017) · Asian Journal of Andrology · doi:10.4103/1008-682x.189211 · Cited by 66 · cited 3× · see citing works
“Kovac et al [24] reported that natural conception can still occur in up to 30% of men with absolute teratozoospermia (0% normal forms), suggesting that sperm morphology assessment may not be a robust predictor of infertility.”
BackgroundResultLi, P., Sha, Y.-W., & Ding, L. (2014) · Asian Journal of Andrology · doi:10.4103/1008-682x.122192 · Cited by 59 · cited 1× · see citing works
“This is caused by the dynein arm defect in the sperm tail [73].”
BackgroundKohn, T. P., Kohn, J. R., & Ramasamy, R. (2018) · Journal of Urology · doi:10.1016/j.juro.2017.11.045 · Cited by 56 · cited 3× · see citing works
“org reason why several recent studies [25] report that IUI pregnancy rates were unaffected by teratozoospermia.”
BackgroundResultLiu, D. Y., & Baker, H. W. (1998) · Human Reproduction · doi:10.1093/humrep/13.4.905 · Cited by 52 · see citing works
Flagged first, then by citations
Research works printed but not linked: 80
- [2]Kumar N Singh AK Trends of male factor infertility, an important cause of infertility: a review of literature J Hum Reprod Sci 2015 8 191 196 26752853 PMC4691969
- [4]Agarwal A Mulgund A Hamada A Chyatte MR A unique view on male infertility around the globe Reprod Biol Endocrinol 2015 13 37 25928197 PMC4424520
- [5]Carlsen E Giwercman A Keiding N Skakkebaek NE Evidence for decreasing quality of semen during past 50 years BMJ 1992 305 609 613 1393072 PMC1883354
- [6]Levine H Jørgensen N Martino-Andrade A Mendiola J Weksler-Derri D Mindlis I Temporal trends in sperm count: a systematic review and meta-regression analysis Hum Reprod Update 2017 23 646 659 28981654 PMC6455044
- [7]Mínguez-Alarcón L Williams PL Chiu YH Gaskins AJ Nassan FL Dadd R Earth Study Team Secular trends in semen parameters among men attending a fertility center between 2000 and 2017: identifying potential predictors Environ Int 2018 121 Pt 2 1297 1303 30389382 PMC6279498
- [8]Trussell JC Coward RM Santoro N Stetter C Kunselman A Diamond MP Reproductive Medicine Network Association between testosterone, semen parameters, and live birth in men with unexplained infertility in an intrauterine insemination population Fertil Steril 2019 111 1129 1134 30982604 PMC6557574
- [9]Agarwal A Baskaran S Parekh N Cho CL Henkel R Vij S Male infertility Lancet 2021 397 319 333 33308486
- [10]Comhaire FH Towards more objectivity in diagnosis and management of male infertility: results of a World Health Organization multicentre study Oxford Blackwell Scientific 1987
- [11]Menkveld R Clinical significance of the low normal sperm morphology value as proposed in the fifth edition of the WHO laboratory manual for the examination and processing of human semen Asian J Androl 2010 12 47 58 20111081 PMC3739680
- [12]World Health Organization (WHO) WHO laboratory manual for the examination of human semen and sperm-cervical mucus interaction 4th ed Cambridge Cambridge University Press 1999
- [14]Kruger TF Menkveld R Stander FS Lombard CJ Van der Merwe JP van Zyl JA Sperm morphologic features as a prognostic factor in in vitro fertilization Fertil Steril 1986 46 1118 1123 2946611
- [16]Kruger TF Acosta AA Simmons KF Swanson RJ Matta JF Oehninger S Predictive value of abnormal sperm morphology in in vitro fertilization Fertil Steril 1988 49 112 117 3335257
- [17]Enginsu ME Pieters MH Dumoulin JC Evers JL Geraedts JP Male factor as determinant of in-vitro fertilization outcome Hum Reprod 1992 7 1136 1140 1400938
- [18]Obara H Shibahara H Tsunoda H Taneichi A Fujiwara H Takamizawa S Prediction of unexpectedly poor fertilization and pregnancy outcome using the strict criteria for sperm morphology before and after sperm separation in IVF-ET Int J Androl 2001 24 102 108 11298844
- [19]Gatimel N Moreau J Parinaud J Léandri RD Sperm morphology: assessment, pathophysiology, clinical relevance, and state of the art in 2017 Andrology 2017 5 845 862 28692759
- [20]Zhu DL Zhang HG Wang RX Jiang YT Liu RZ Re-evaluation of the value of sperm morphology in classical in vitro fertilization in a Northeastern Chinese population J Int Med Res 2019 47 4134 4142 31280631 PMC6753564
- [21]French DB Sabanegh ES Jr Goldfarb J Desai N Does severe teratozoospermia affect blastocyst formation, live birth rate, and other clinical outcome parameters in ICSI cycles? Fertil Steril 2010 93 1097 1103 19200957
- [22]Hotaling JM Smith JF Rosen M Muller CH Walsh TJ The relationship between isolated teratozoospermia and clinical pregnancy after in vitro fertilization with or without intracytoplasmic sperm injection: a systematic review and meta-analysis Fertil Steril 2011 95 1141 1145 21030014
- [23]van den Hoven L Hendriks JC Verbeet JG Westphal JR Wetzels AM Status of sperm morphology assessment: an evaluation of methodology and clinical value Fertil Steril 2015 103 53 58 25450299
- [26]Pantos K Sfakianoudis K Maziotis E Rapani A Karantzali E Gounari-Papaioannou A Abnormal fertilization in ICSI and its association with abnormal semen parameters: a retrospective observational study on 1855 cases Asian J Androl 2021 10.4103/aja.aja_84_20 [Epub] PMC8269831 33510051 · DOI
- [27]Jedrzejczak P Taszarek-Hauke G Hauke J Pawelczyk L Duleba AJ Prediction of spontaneous conception based on semen parameters Int J Androl 2008 31 499 507 17651398
- [28]Danis RB Samplaski MK Sperm morphology: history, challenges, and impact on natural and assisted fertility Curr Urol Rep 2019 20 43 31203470
- [29]Talarczyk-Desole J Berger A Taszarek-Hauke G Hauke J Pawelczyk L Jedrzejczak P Manual vs. computer-assisted sperm analysis: can CASA replace manual assessment of human semen in clinical practice? Ginekol Pol 2017 88 56 60 28326513
- [30]Carrell DT De Jonge CJ The troubling state of the semen analysis Andrology 2016 4 761 762 27529486
- [31]Schallmoser A Bakjaji F Königsberger S John J Färber C Schmidt E Effect of mild α-chymotrypsin treatment of highly viscous semen samples on fertilization rates Transl Androl Urol 2021 10 448 454 33532332 PMC7844487
- [32]Zhu WJ Preparation and observation methods can produce misleading artefacts in human sperm ultrastructural morphology Andrologia 2018 50 e13043 29732590
- [33]Agarwal A Gupta S Sharma R Sperm morphology stain (Diff-Quik®) Agarwal A Gupta S Sharma R Andrological evaluation of male infertility: a laboratory guide Cham Springer 2016 79 82
- [34]Menkveld R Wong WY Lombard CJ Wetzels AM Thomas CM Merkus HM Semen parameters, including WHO and strict criteria morphology, in a fertile and subfertile population: an effort towards standardization of in-vivo thresholds Hum Reprod 2001 16 1165 1171 11387287
- [35]Mortimer D Menkveld R Sperm morphology assessment--historical perspectives and current opinions J Androl 2001 22 192 205 11229793
- [36]Singh S Sharma S Jain M Chauhan R Importance of papanicolaou staining for sperm morphologic analysis: comparison with an automated sperm quality analyzer Am J Clin Pathol 2011 136 247 251 21757597
- [37]Oral E Yetis O Elibol F Senol H Irez T Aksu FM Assessment of human sperm morphology by strict criteria: comparison of wet preparation versus stained with the modified Diff-Quik method Arch Androl 2002 48 307 314 12137592
- [38]Henkel R Schreiber G Sturmhoefel A Hipler UC Zermann DH Menkveld R Comparison of three staining methods for the morphological evaluation of human spermatozoa Fertil Steril 2008 89 449 455 17601601
- [39]Björndahl L Mortimer D Barratt CLR Castilla JA Menkveld R Kvist U A practical guide to basic laboratory andrology Cambridge Cambridge University Press 2010
- [41]Brazil C Swan SH Tollner CR Treece C Drobnis EZ Wang C Study for Future Families Research Group Quality control of laboratory methods for semen evaluation in a multicenter research study J Androl 2004 25 645 656 15223854
- [42]Keel BA Quality control, quality assurance, and proficiency testing in the andrology laboratory Arch Androl 2002 48 417 431 12425759
- [44]Comhaire F Schoonjans F Vermeulen L De Clercq N Methodological aspects of sperm morphology evaluation: comparison between strict and liberal criteria Fertil Steril 1994 62 857 861 7926099
- [45]Sripada S Townend J Campbell D Murdoch L Mathers E Bhattacharya S Relationship between semen parameters and spontaneous pregnancy Fertil Steril 2010 94 624 630 19361792
- [46]Kruger TF Lacquet FA Sarmiento CA Menkveld R Ozgür K Lombard CJ A prospective study on the predictive value of normal sperm morphology as evaluated by computer (IVOS) Fertil Steril 1996 66 285 291 8690118
- [47]Majzoub A Arafa M Mahdi M Agarwal A Al Said S Al-Emadi I Oxidation-reduction potential and sperm DNA fragmentation, and their associations with sperm morphological anomalies amongst fertile and infertile men Arab J Urol 2018 16 87 95 29713539 PMC5922185
- [48]Liu DY Baker HW Disordered acrosome reaction of spermatozoa bound to the zona pellucida: a newly discovered sperm defect causing infertility with reduced sperm-zona pellucida penetration and reduced fertilization in vitro Hum Reprod 1994 9 1694 1700 7836520
- [50]Abu Hassan Abu D Franken DR Hoffman B Henkel R Accurate sperm morphology assessment predicts sperm function Andrologia 2012 44 Suppl 1 571 577 22040054
- [51]Brahem S Mehdi M Elghezal H Saad A Detection of DNA fragmentation and meiotic segregation in human with isolated teratozoospermia J Assist Reprod Genet 2011 28 41 48 20872065 PMC3045490
- [52]Auger J Jouannet P Eustache F Another look at human sperm morphology Hum Reprod 2016 31 10 23 26472152
- [53]Fesahat F Henkel R Agarwal A Globozoospermia syndrome: an update Andrologia 2020 52 e13459 31724759
- [54]Vozdova M Rybar R Kloudova S Prinosilova P Texl P Rubes J Total globozoospermia associated with increased frequency of immature spermatozoa with chromatin defects and aneuploidy: a case report Andrologia 2014 46 831 836 24007278
- [55]Han F Liu C Zhang L Chen M Zhou Y Qin Y Globozoospermia and lack of acrosome formation in GM130-deficient mice Cell Death Dis 2017 8 e2532 28055014 PMC5386352
- [56]Eskandari N Tavalaee M Zohrabi D Nasr-Esfahani MH Association between total globozoospermia and sperm chromatin defects Andrologia 2018 50 e12843 28660655
- [57]Ounis L Zoghmar A Coutton C Rouabah L Hachemi M Martinez D Mutations of the aurora kinase C gene causing macrozoospermia are the most frequent genetic cause of male infertility in Algerian men Asian J Androl 2015 17 68 73 25219909 PMC4291881
- [58]Parikh FR Kamat SA Kodwaney GG Balaiah D Computer-assisted semen analysis parameters in men with varicocele: is surgery helpful? Fertil Steril 1996 66 440 445 8751745
- [59]Lee JD Kamiguchi Y Yanagimachi R Analysis of chromosome constitution of human spermatozoa with normal and aberrant head morphologies after injection into mouse oocytes Hum Reprod 1996 11 1942 1946 8921068
- [60]Prisant N Escalier D Soufir JC Morillon M Schoevaert D Misrahi M Ultrastructural nuclear defects and increased chromosome aneuploidies in spermatozoa with elongated heads Hum Reprod 2007 22 1052 1059 17208942
- [61]Prasivoravong J Marcelli F Lemaître L Pigny P Ramdane N Peers MC Beneficial effects of varicocele embolization on semen parameters Basic Clin Androl 2014 24 9 25780583 PMC4349315
- [62]Guthauser B Pollet-Villard X Boitrelle F Vialard F Is intracouple assisted reproductive technology an option for men with large-headed spermatozoa? A literature review and a decision guide proposal Basic Clin Androl 2016 26 8 27398217 PMC4939046
- [63]Ray PF Toure A Metzler-Guillemain C Mitchell MJ Arnoult C Coutton C Genetic abnormalities leading to qualitative defects of sperm morphology or function Clin Genet 2017 91 217 232 27779748
- [64]Yassine S Escoffier J Abi Nahed R Pierre V Karaouzene T Ray PF Dynamics of Sun5 localization during spermatogenesis in wild type and Dpy19l2 knock-out mice indicates that Sun5 is not involved in acrosome attachment to the nuclear envelope PLoS One 2015 10 e0118698 25775128 PMC4361733
- [65]Chemes HE Puigdomenech ET Carizza C Olmedo SB Zanchetti F Hermes R Acephalic spermatozoa and abnormal development of the head-neck attachment: a human syndrome of genetic origin Hum Reprod 1999 14 1811 1818 10402395
- [66]Saïas-Magnan J Metzler-Guillemain C Mercier G Carles-Marcorelles F Grillo JM Guichaoua MR Failure of pregnancy after intracytoplasmic sperm injection with decapitated spermatozoa: case report Hum Reprod 1999 14 1989 1992 10438415
- [67]Huszar G Vigue L Spermatogenesis-related change in the synthesis of the creatine kinase B-type and M-type isoforms in human spermatozoa Mol Reprod Dev 1990 25 258 262 2331374
- [68]Gomez E Buckingham DW Brindle J Lanzafame F Irvine DS Aitken RJ Development of an image analysis system to monitor the retention of residual cytoplasm by human spermatozoa: correlation with biochemical markers of the cytoplasmic space, oxidative stress, and sperm function J Androl 1996 17 276 287 8792218
- [69]Zini A Defreitas G Freeman M Hechter S Jarvi K Varicocele is associated with abnormal retention of cytoplasmic droplets by human spermatozoa Fertil Steril 2000 74 461 464 10973638
- [70]Mak V Jarvi K Buckspan M Freeman M Hechter S Zini A Smoking is associated with the retention of cytoplasm by human spermatozoa Urology 2000 56 463 466 10962316
- [71]Rengan AK Agarwal A van der Linde M du Plessis SS An investigation of excess residual cytoplasm in human spermatozoa and its distinction from the cytoplasmic droplet Reprod Biol Endocrinol 2012 10 92 23159014 PMC3551780
- [72]Dávila Garza SA Patrizio P Reproductive outcomes in patients with male infertility because of Klinefelter's syndrome, Kartagener's syndrome, round-head sperm, dysplasia fibrous sheath, and ‘stump’ tail sperm: an updated literature review Curr Opin Obstet Gynecol 2013 25 229 246 23587797
- [74]Nijs M Vanderzwalmen P Vandamme B Segal-Bertin G Lejeune B Segal L Fertilizing ability of immotile spermatozoa after intracytoplasmic sperm injection Hum Reprod 1996 11 2180 2185 8943526
- [75]Westlander G Barry M Petrucco O Norman R Different fertilization rates between immotile testicular spermatozoa and immotile ejaculated spermatozoa for ICSI in men with Kartagener's syndrome: case reports Hum Reprod 2003 18 1286 1288 12773460
- [76]Esteves SC Sánchez-Martín F Sánchez-Martín P Schneider DT Gosálvez J Comparison of reproductive outcome in oligozoospermic men with high sperm DNA fragmentation undergoing intracytoplasmic sperm injection with ejaculated and testicular sperm Fertil Steril 2015 104 1398 1405 26428305
- [77]Pacey AA Povey AC Clyma JA McNamee R Moore HD Baillie H Participating Centres of Chaps-UK Modifiable and non-modifiable risk factors for poor sperm morphology Hum Reprod 2014 29 1629 1636 24899128
- [78]Cherry N Povey AC McNamee R Moore H Baillie H Clyma JA participating centres of CHAPS-UK Occupation exposures and sperm morphology: a case-referent analysis of a multi-centre study Occup Environ Med 2014 71 598 604 24847137
- [79]Boeri L Capogrosso P Ventimiglia E Pederzoli F Cazzaniga W Chierigo F Heavy cigarette smoking and alcohol consumption are associated with impaired sperm parameters in primary infertile men Asian J Androl 2019 21 478 485 30829290 PMC6732890
- [80]Gaur DS Talekar M Pathak VP Effect of cigarette smoking on semen quality of infertile men Singapore Med J 2007 48 119 123 17304390
- [81]Gaur DS Talekar MS Pathak VP Alcohol intake and cigarette smoking: impact of two major lifestyle factors on male fertility Indian J Pathol Microbiol 2010 53 35 40 20090219
- [82]Zamkowska D Karwacka A Jurewicz J Radwan M Environmental exposure to non-persistent endocrine disrupting chemicals and semen quality: an overview of the current epidemiological evidence Int J Occup Med Environ Health 2018 31 377 414 30160090
- [83]Wijesekara GU Fernando DM Wijerathna S Bandara N Environmental and occupational exposures as a cause of male infertility Ceylon Med J 2015 60 52 56 26132184
- [84]Pollard SH Cox KJ Blackburn BE Wilkins DG Carrell DT Stanford JB Male exposure to bisphenol A (BPA) and semen quality in the home observation of periconceptional exposures (HOPE) cohort Reprod Toxicol 2019 90 82 87 31445078 PMC6885548
- [85]Meeker JD Rossano MG Protas B Diamond MP Puscheck E Daly D Cadmium, lead, and other metals in relation to semen quality: human evidence for molybdenum as a male reproductive toxicant Environ Health Perspect 2008 116 1473 1479 19057699 PMC2592266
- [86]Agarwal A Leisegang K Majzoub A Henkel R Finelli R Panner Selvam MK Utility of antioxidants in the treatment of male infertility: clinical guidelines based on a systematic review and analysis of evidence World J Mens Health 2021 39 233 290 33474843 PMC7994666
- [87]Arafa M Agarwal A Majzoub A Panner Selvam MK Baskaran S Henkel R Efficacy of antioxidant supplementation on conventional and advanced sperm function tests in patients with idiopathic male infertility Antioxidants (Basel) 2020 9 219 PMC7139646 32155908
- [88]Majzoub A Agarwal A Systematic review of antioxidant types and doses in male infertility: benefits on semen parameters, advanced sperm function, assisted reproduction and live-birth rate Arab J Urol 2018 16 113 124 29713542 PMC5922223
- [89]Agarwal A Deepinder F Cocuzza M Agarwal R Short RA Sabanegh E Efficacy of varicocelectomy in improving semen parameters: new meta-analytical approach Urology 2007 70 532 538 17905111
- [90]Karabulut S Aksunger O Korkmaz O Eren Gozel H Keskin I Intracytoplasmic morphologically selected sperm injection, but for whom? Zygote 2019 27 299 304 31412966
Cited by
Sorted by citations
Isolated teratozoospermia: revisiting its relevance in male infertility: a narrative review
Atmoko, W., Savira, M., Shah, R., Chung, E., & Agarwal, A. (2024) · Translational Andrology and Urology · doi:10.21037/tau-23-397 · Cited by 23 · see citing works
“To further complicate matters, morphological assessment can be highly subjective, with high intra-and inter-laboratory variations resulting in questionable reliability and high heterogeneity of the available evidence (12).”
Self-citation
- Authors
- Agarwal, A., Sharma, R., Gupta, S., Finelli, R., Parekh, N., Panner Selvam, M. K., Henkel, R., Durairajanayagam, D., Pompeu, C., Madani, S., Belo, A., Singh, N., Covarrubias, S., Darbandi, S., Sadeghi, R., Darbandi, M., Vogiatzi, P., Boitrelle, F., Simopoulou, M., Saleh, R., Arafa, M., Majzoub, A., Kandil, H., Zini, A., Ko, E., Alvarez, J. G., Martinez, M., Ramsay, J., Jindal, S., Busetto, G. M., Sallam, H., Maldonado, I., Anagnostopoulou, C., Alves, M. G., Sengupta, P., Gilany, K., Evenson, D. P., Lewis, S. E. M., Gosalvez, J., Ambar, R. F., & Shah, R.
- Affiliations
- Cleveland Clinic (US)
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
- Universiti Teknologi MARA System (MY)
- Bolivian Forest Research Institute (BO)
- University of Sciences and Technology Houari Boumediene (DZ)
- Huntington Centro de Medicina Reproditiva S/A, Sao Paulo, São Paulo, Brazil.
- NOVA IVF, Gorakhpur, India.
- University of San Francisco (US)
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran.
- Andromed Health & Reproduction, Fertility Diagnostics Laboratory, Maroussi, Athens, Greece.
- Université de Versailles Saint-Quentin-en-Yvelines (FR)
- National and Kapodistrian University of Athens (GR)
- Sohag University (EG)
- Fakih IVF Fertility Center, Abu Dhabi, UAE.
- McGill University (CA)
- Loma Linda University (US)
- Centro ANDROGEN, La Coruña, Spain.
- University of Santo Tomas Hospital (PH)
- Hammersmith Hospital (GB)
- Department of Andrology and Reproductive Medicine, Jindal Hospital, Meerut, India.
- University of Foggia (IT)
- Alexandria University (EG)
- Citmer Reproductive Medicine, IVF LAB, Mexico City, Mexico.
- IVF Clinic “Akeso-Embryo ART”, Athens, Greece.
- Universidade do Porto (PT)
- Mahsa University (MY)
- Academic Center for Education, Culture and Research (IR)
- SCSA Diagnostics, Brookings, SD, USA.
- Queen's University Belfast (GB)
- Genetic Unit, Department of Biology, Universidad Autónoma de Madrid, Madrid, Spain.
- Faculdade de Medicina do ABC (BR)
- Lilavati Hospital & Research Centre (IN)
- Corresponding author
- Agarwal, Ashok
- ORCID
- Agarwal, Ashok
- Sharma, Rakesh
- Gupta, Sajal
- Finelli, Renata
- Parekh, Neel
- Panner Selvam, Manesh Kumar
- Henkel, Ralf
- Durairajanayagam, Damayanthi
- Pompeu, Camila
- Madani, Sarah
- Belo, Andrea
- Singh, Neha
- Covarrubias, Simryn
- Darbandi, Sara
- Sadeghi, Raha
- Darbandi, Mahsa
- Vogiatzi, Paraskevi
- Boitrelle, Florence
- Simopoulou, Mara
- Saleh, Ramadan
- Arafa, Mohamed
- Majzoub, Ahmad
- Kandil, Hussein
- Zini, Armand
- Ko, Edmund
- Alvarez, Juan G.
- Martinez, Marlon
- Ramsay, Jonathan
- Jindal, Sunil
- Busetto, Gian Maria
- Sallam, Hassan
- Maldonado, Israel
- Anagnostopoulou, Christina
- Alves, Marco G.
- Sengupta, Pallav
- Gilany, Kambiz
- Evenson, Donald P.
- Lewis, Sheena E.M.
- Gosalvez, Jaime
- Ambar, Rafael F.
- Shah, Rupin
- Venue
- The World Journal of Men's Health
- Publisher
- XMLink
- Published
- 2022
- Volume
- 40
- Issue
- 3
- Pages
- 347
- ISSN
- 2287-4208 (ISSN-L)
- 2287-4690
- PMC
- PMC9253798
- OpenAlex
- W3175131791
- Cited by
- 45
- References
- 6
- Citations by year
- 2026: 6 · 2025: 18 · 2024: 9 · 2023: 8 · 2022: 1 · 2021: 3
- FWCI
- 0.86
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- Locations
- The World Journal of Men s Health (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Research Portal (Queen's University Belfast) (publishedVersion, cc-by-nc)
- HAL (submittedVersion, cc-by-nc)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- UWC Research Repository (University of the Western Cape) (submittedVersion)
- Spiral (Imperial College London) (submittedVersion, other-oa)
- Funders
- Cleveland Clinic
- American Center for Reproductive Medicine, Cleveland Clinic
- Topics
- Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
- Health Sciences › Medicine › Reproductive Medicine › Reproductive Health and Technologies
- Health Sciences › Health Professions › General Health Professions › Male Reproductive Health Studies
- Keywords
- sperm morphology assessment, intracytoplasmic sperm injection, teratozoospermia, semen analysis, laboratory standardization, quality control, quality assurance, male infertility, WHO guidelines
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