| Not Yet Recruiting | Intratesticular Artery Resistive Index Changes After Varicocelectomy NCT07517952 | Assiut University | N/A |
| Not Yet Recruiting | Reflux Flow Volume Impact on Semen Parameters Pre and Post Varicocelectomy NCT07263009 | Assiut University | — |
| Not Yet Recruiting | Microscopic Varicocele Bypass Versus Ligation NCT07065695 | Ke Dou | N/A |
| Not Yet Recruiting | A Prospective Cohort Study of Combined Subinguinal Varicocele Ligation and Sclerotherapy NCT06743932 | Assiut University | — |
| Recruiting | Evaluation of Fertitonex Effects on Semen Parameters in Clinical Varicocele Patient. NCT06718426 | Menoufia University | N/A |
| Completed | Comparison of Open Versus Laparoscopic High Ligation Varicocelectomy For The Treatment Of Varicocele NCT07353164 | Lahore General Hospital | N/A |
| Completed | Comparison Between Loupe-Assisted Varicocelectomy With Nitroglycerin Instillation and Microscopic Varicocelect NCT06509321 | Fayoum University Hospital | N/A |
| Unknown | "Comparison of USG-Guided Caudal Versus Ilioinguinal/Iliohypogastric Nerve Block for Pediatric Inguinal Surger NCT05558748 | Sultan Qaboos University | N/A |
| Unknown | Evaluating Patient Tolerability and Success for Penile and Scrotal Urologic Procedures Under Conscious Sedatio NCT05617261 | University of Manitoba | — |
| Unknown | Effect of Recent Ejaculation on Scrotal Duplex Parameters in Infertile Males With Varicocele NCT05330533 | Assiut University | — |
| Unknown | Lactoferrin and Iron in Seminal Plasma of Varicocele NCT05171504 | Assiut University | — |
| Unknown | Varicocele Treatement by Endovasculer Embolization NCT03341897 | Assiut University | N/A |
| Completed | The Effect of Subcutaneous and Intraperitoneal Anesthesia on Post Laparoscopic Pain NCT05034406 | KBC Split | N/A |
| Completed | Seminal TEX101 as a Predictor of Recovery of Spermatogenesis in Azoospermic Men With Palpable Varicocele NCT04397887 | Cairo University | N/A |
| Completed | Assessment of Seminal Levels of Cystatin C and Endoglin in Infertile Men With Varicocele NCT04856579 | Benha University | N/A |
| Completed | EASYX-1 : A Multicenter Study on Safety and Efficacy of Easyx Liquid Embolization Agent Used in Five Separate NCT03477149 | Assistance Publique - Hôpitaux de Paris | N/A |
| Unknown | the Effect of Different Modialites of Varicocelectomy on Semen Parameters in Patient With Normal Semen Analysi NCT03281915 | Assiut University | — |
| Completed | "Outcome of Varicocelectomy on Normal Semen in Patients Complaining of Orchialgia NCT04509869 | Assiut University | N/A |
| Unknown | IVF Outcomes After Varicocele Repair NCT03090438 | Shaare Zedek Medical Center | N/A |
| Completed | Effect of TAP Block for Postoperative Pain Control After Varicocele Operations. NCT02983383 | Kahramanmaras Sutcu Imam University | N/A |
| Completed | Analysis on AEFI Surveillance Data for Live Attenuated Varicella Vaccine NCT02983656 | Zhejiang Provincial Center for Disease Control and Prevention | — |
| Unknown | The Search for Viral and Bacterial Etiology of Varicocele NCT03079609 | Medical University of Warsaw | N/A |
| Unknown | Role of FSHR Polymorphism p.N680S in the Therapy With FSH in Patients Who Underwent Varicocele Surgery NCT02719093 | U.O. Chirurgia Andrologica | Phase 4 |
| Unknown | Doppler Ultrasound Assisted Varicocelectomy Improve Sperm Qualities NCT02695199 | The Second Hospital of Shandong University | N/A |
| Unknown | The Role of Microsurgery in Surgical Treatment of Varicocele. NCT02722187 | Medical University of Warsaw | N/A |
| Unknown | Quality of Life Among Testicular Cancer Survivors NCT02304575 | Rabin Medical Center | — |
| Unknown | Evaluation of PerformanCe of the Peripheral EOS in the Treatment of Varicocele or Pelvic Congestion SynDromE NCT02033863 | ArtVentive Medical Group, Inc. | — |
| Completed | The Anaesthesiological Approach to Varicocele Correction in Outpatients Setting: an Observational Analysis NCT02401087 | Ospedale di Circolo - Fondazione Macchi | — |
| Unknown | Testicular Growth During Puberty in Boys With and Without a Left-sided Varicocele NCT03540056 | Universiteit Antwerpen | — |
| Terminated | Varicocelectomy: Can Sex-hormones Predict Improvements in Semen Quality? NCT01296230 | Copenhagen University Hospital at Herlev | N/A |
| Completed | Single Incision Laparoscopic Varicocelectomy NCT02335385 | Mansoura University | N/A |
| Completed | Comparison of Outcomes of Two Approaches in Microsurgical Varicocelectomy in Chinese Infertile Males: A Prospe NCT01463787 | Feng Pan | Phase 4 |
| Completed | Dye Assisted Lymphatic Sparing Subinguinal Varicocelectomy NCT01259258 | Mansoura University | Phase 2 |
| Completed | The Effect of Spermatic Vein Embolization on Prostatic Hypertrophy NCT00639899 | Maaynei Hayesha Medical Center | N/A |
| Completed | Assessing the Rates of Major Complications in Combined Mini-incision Microscopic Varicocelectomy NCT02092311 | Omid Fertility Center | N/A |
| Completed | Role of the Toxic Metal Cadmium in the Mechanism Producing Infertility With a Varicocele NCT00044369 | National Institute of Environmental Health Sciences (NIEHS) | — |
| Completed | Beneficial Effects of Microsurgical Varicocelectomy on Semen Parameters for Causes Other Than Infertility NCT02006316 | Seoul National University Hospital | — |