William Smellie helped to incorporate scientific medicine into the process of childbirth in eighteenth century Britain. As a male physician practicing in childbirth and female reproductive health (man-midwife), Smellie developed and taught procedures to treat breech fetuses, which occur when a fetus fails to rotate its head towards the birth canal during delivery. Throughout his career, Smellie compiled a wealth of information about female anatomy in his writings. He modified medical technology such as the obstetrical forceps, an instrument used to maneuver the fetus during childbirth. Smellie's techniques and improvements on forceps alleviated pain in women giving birth, mitigated complications during birth, and reduced infant mortality rates.

In 1953, Virginia Apgar published the article "A Proposal for a New Method for Evaluation of the Newborn Infant" about her method for scoring newborn infants directly after birth to assess their health and whether medical intervention was necessary. Apgar worked at the Presbyterian Hospital in New York City, New York, as an obstetrical anesthesiologist, a physician who administers pain medication during childbirth. In that capacity, she sought to reestablish clear scoring guidelines for newborn infants so that she could compare which obstetric practices, pain relief methods, and resuscitation methods worked the best during and after childbirth. She published her article in Current Researches in Anesthesia and Analgesia in 1953, and the Apgar scoring system is still used in hospitals around the world as of 2016. In the article, Apgar establishes a scoring system for newborn infants that allows for quick assessment of their health directly after birth and therefore swift intervention by medical personnel to promote healthy development.

A Treatise on the Theory and Practice of Midwifery is a three volume collection of patient accounts that William Smellie published from 1752 to 1764. Smellie, a physician and instructor in obstetrics in Great Britain, published these compilations to share his expertise in reproductive medicine, while also providing his students and colleagues with a source of reference in their own medical practices. Smellie wrote these books to shift obstetrics from a discipline practiced by midwives with limited medical training to one practiced in a medical context by physicians. Throughout his books, Smellie describes effective and ineffective treatments, tools, and interventions for complications during pregnancy. Due to the popularity of Smellie's writings, access to Smellie's work expanded beyond his students, allowing obstetricians, man-midwives, and physicians to refer to scientific literature and apply Smellie's teachings to their own practice.

In 1952 Virginia Apgar, a physician at the Sloane Women’s Hospital in New York City, New York, created the Apgar score as a method of evaluating newborn infants’ health to determine if they required medical intervention. The score included five separate categories, including heart rate, breathing rate, reaction to stimuli, muscle activity, and color. An infant received a score from zero to two in each category, and those scores added up to the infant’s total score out of ten. An infant with a score of ten was healthy, and those with low scores required medical attention at birth. Apgar originally used the score to determine how infants responded to the pain-relieving drugs given to pregnant women during labor. But it also served to determine when the infant required medical assistance, especially oxygen resuscitation. As of 2016, nearly every hospital in the world uses an updated Apgar score to evaluate the health of newborn infants. The Apgar score has allowed for medical personnel to evaluate an infant directly after birth on an objective scale to determine whether that infant could benefit from possibly life-saving medical intervention.

A Treatise on the Theory and Practice of Midwifery is a three volume collection of patient accounts that William Smellie published from 1752 to 1764. Smellie, a physician and instructor in obstetrics in Great Britain, published these compilations to share his expertise in reproductive medicine, while also providing his students and colleagues with a source of reference in their own medical practices. Smellie wrote these books to shift obstetrics from a discipline practiced by midwives with limited medical training to one practiced in a medical context by physicians. Throughout his books, Smellie describes effective and ineffective treatments, tools, and interventions for complications during pregnancy. Due to the popularity of Smellie's writings, access to Smellie's work expanded beyond his students, allowing obstetricians, man-midwives, and physicians to refer to scientific literature and apply Smellie's teachings to their own practice.