John O DeLancey MD

John O. DeLancey, MD

Professor, Obstetrics & Gynecology
Professor, Urology


Dr. John DeLancey is the Norman F. Miller Professor of Obstetrics & Gynecology at University of Michigan Health System.

Dr. DeLancey completed his medical school and residency training in Obstetrics and Gynecology and the University of Michigan. During his distinguished career he has maintained an active clinical practice specializing in clinical and surgical treatment for complex problems of pelvic organ prolapse and incontinence.

Dr. DeLancey has been an author on over 180 original scientific research papers and has been a key-note and state-of-the-art lecturer in 16 countries on 5 continents. He has been President of the Society of Gynecologic Surgeons and American Urogynecologic Society as well as serving on the American Board of Obstetrics and Gynecology’s Female Pelvic Medicine/Reconstructive Surgery Division. He lives in his home town of Ann Arbor with his wife and 3 children.

Areas of Interest


Obstetrics & Gynecology


Dr. DeLancey is one of the world's foremost surgeon/researchers studying pelvic floor disorders (problems of incontinence and prolapse of the pelvic organs). He and his research team are dedicated to improving treatment and prevention of women's pelvic floor disorders.

His early research career focused on developing an accurate and detailed understanding of the pelvic floor surgical and functional anatomy as it relates to surgical treatment of urinary incontinence and pelvic organ prolapse. In the early 1990's, Dr. DeLancey met biomechanical engineer James A. Ashton-Miller, PhD. Using detailed pelvic MR scans and advanced biomechanical modeling, DeLancey, Ashton-Miller and their colleagues have discovered many basic factors involved in pelvic floor structural mechanics related to urinary and fecal incontinence. In addition, their work has led to insights into the remarkable biomechanics of vaginal birth injury that is one of the dominant causes of incontinence and prolapse. Together, they founded the Pelvic Floor Research Group at Michigan, an internationally respected interdisciplinary research group focused on making discoveries that can improve treatment of pelvic floor disorders. Members of the group have been continuously funded by the NIH since 1995 having received over $15 million for research support.

Information about Dr. DeLancey's and the group's current research activities can be found at

Clinical Interests

Urogynecology, pelvic floor disorders including pelvic organ prolapse (fallen bladder and uterus), urinary incontinence, treatment of patients with recurrence of prolapse after surgery


Medical School or Training

  • University of Michigan Medical School, 1977


  • University of Michigan Health System, Obstetrics & Gynecology, MI, 1981

Board Certification

  • Obstetrics & Gynecology
  • Female Pelvic Medicine & Reconstructive Surg

Published Articles via PubMed

Published Articles or Reviews


Von Voigtlander Women's Hospital
1540 E. Hospital Drive, Floor 9, Reception B
Ann Arbor MI 48109