The Pioneer in Life-Affirming Women’s Healthcare

About Thomas W. Hilgers, MD

Director of the Saint Paul VI Institute for the Study of Human Reproduction in Omaha, Nebraska and the Medical Director of its nationally-accredited reproductive ultrasound center that features 3-D and 4-D ultrasound imaging. He began his first research in human fertility in 1968 as a senior medical student.

In 1968, Pope Paul VI presented Catholic Church teachings on love and life in the encyclical Humanae Vitae. At that time, natural methods of fertility regulation were insufficient for couples to live these teachings effectively and joyfully. This challenge prompted Dr. Hilgers to begin scientific research in natural fertility regulation. His research brought forth the revolutionary Creighton Model FertilityCare System and the new women’s health science of NaProTECHNOLOGY®.

Creighton Model
FertilityCare™ System (CrMS)

One of Dr. Hilgers’ pivotal discoveries is the standardized observation of menstrual and fertility cycles, known as the CrMS. Women chart with the system for gynecologic health maintenance, and couples use it to achieve or avoid pregnancy.

Trained physicians can read a woman’s CrMS chart universally — this is the key to unraveling the mysteries of the menstrual and fertility cycle.

Natural Procreative Technology

NaProTechnology is a researched and published women’s health science based on CrMS observations, which provides objective information on the cycle. After using the CrMS to telegraph abnormalities, NaProTechnology treats problems cooperatively with the procreative and gynecologic systems while respecting the dignity of women, couples, and preborn children.

  • Infertility
  • Premenstrual Syndrome (PMS)
  • Polycystic Ovaries
  • Painful or Irregular Periods
  • Abnormal Bleeding
  • Premature Birth
  • Repetitive Miscarriage
  • Postpartum Depression
  • Hormonal Abnormalities
  • And Others


Pelvioplasty is a surgical technique, developed at the Saint Paul VI Institute, which eliminates, for the most part, the scar tissue that forms following surgery done in the removal of endometriosis and other surgeries. The Saint Paul VI Institute has now become the “Home of Pelvioplasty.”

“The Pope Paul VI Institute in Omaha gives me great hope for the future!”

Saint John Paul II

The Pioneer in Life-Affirming Women's Healthcare