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M. (Marij) Dinkelman-Smit, PhD

Urologist, Andrologist

  • Department
  • Urology



My interest in basic science aspects of Andrology, male infertility, dates back to 2003 and my thesis "clinical application of sperm chromatin structure assessment in Andrology patients". After completing my training as a general urologist in 2012, I focused on developing surgical skills in the treatment of male infertility and sexual medicine during a 2 year fellowship. My clinical research activities focused on patient selection and treatment outcome of azoospermia, erectile dysfunction and Peyronies Disease. Since 2015, my research interest and goals have developed towards improving fertility preservation and treatment of azoospermia. My clinical research focuses on and patient selection and outcome of penile surgery for erectile dysfunction and curvature.

Field(s) of expertise

Research activities / interest

Male Infertility:

  • Non-obstructive azoospermia, sperm retrieval rate (micro)TESE, Klinefelter Syndrome.
  • Fertility preservation in male cancer patients, referral rate and outcome of sperm cryopreservation, oncoTESE.
  • Clinical treatment of Obstructive azoospermia following vasectomy.

Sexual Medicine:

  • Peyronies Disease (Surgical treatment, Questionnaire validation).
  • Penile prosthesis (Surgical treatment, Quality of life).

Education and career

  • 2016 - now: Consultant Urologist/Andrologist Reproductive Medicine and Sexual Medicine.
  • 2018: Fellow of the European Committee of Sexual Medicine.
  • 2013 - 2015: Fellow Andrology and Urogenital Reconstructive Surgery.
    Erasmus MC Rotterdam PhD research, doctorate Erasmus University Rotterdam March 30th 2011.
    Prof. C.H. Bangma MD PhD  G.R. Dohle MD PhD J.C. Romijn PhD Clinical application of sperm chromatin structure assessment in Andrology patients.
  • 2008 - 2012: Urologist training Erasmus MC, Department of Urology, Rotterdam.
  • 2003 - 2005: European Academy of Andrology Certified Clinical Andrologist training.
    Erasmus MC, Department of Andrology, Rotterdam.
  • 1995 - 2002: Doctor of Medicine (Cum Laude). Erasmus University, Rotterdam.


A complete overview of publications can be found here:

Marij Dinkelman-Smit

Other positions

  • Board member Special Interst Group (SIG) Andrologie.
  • Board member EAU section of Andrological Urology.
  • Werkgroep Andrologie.
  • Nederlandse Erectieprothese implanteurs.
  • Wetenschappelijke commissie NVU.
  • 2017 - 2020: Chair Obstructieve azoospermie richtlijn.
  • 2017 - 2019: Panel member PanCare Life Male fertility preservation guideline.
  • 2015 - 2018: Associate panel member EAU Male Hypogonadism guideline.
  • Medical advisory board Patienten vereniging Klinefelter, Stichting Lichen Sclerosus, Tijdschrift voor urologie.

Scholarships, grants, and awards

  • 2018: first prize EAU Davos Winter Forum Urology
  • 2017: SKMS Richtlijn Obstructieve Azoospermie
  • 2010:Vlietstra prijs