“First do no harm” and “prevention is better than cure” are two basic principles of medicine. These unnecessary interventions contradict these two principles of medicine. These unnecessary interventions have revealed the concept of quaternary prevention. The concept of quaternary prevention, developed by Doctor Marc Jamoulle in 1986, refers to "protection measures from over-diagnosis, over-labelling (stigma), medicalization of standard conditions and over-treatment". In the dictionary, quaternary prevention is defined as “the action taken to identify patients and populations at risk of overmedicalization, to protect them from medical invasions, and to provide them with scientifically and ethically acceptable care procedures.” Pregnancy and birth are physiological processes. In recent years, physical and chemical interventions during birth have increased due to the development of technology and related factors. Unnecessary interventions during labor increase mother-baby morbidity and mortality rates. In addition, unnecessary interventions are one of the important issues that directly risk patient safety. Oxytocin induction, vacuum and forceps application, episiotomy, amniotomy, perineal shaving, enema application, preventing the movement of the pregnant woman and constantly laying her down, frequent vaginal examination, and continuous electronic fetal monitoring used in labor are discussed in this context. At the same time, cesarean section is considered among these practices because it is a surgical intervention in the act of birth. In the presence of certain indications, these interventions can be used to deliver safely. However, the mother's lack of psychosocial support due to these interventions brings with it the concept of obstetric violence. In order to provide quaternary protection during the birth process, the birth process should be individualized and unnecessary interventions should be avoided. Physical and psychological support is necessary to ensure that mother-baby health is maintained throughout this process. Obstetrics and gynecology nurses have important roles and responsibilities in terms of quaternary prevention. Especially in this protection step, it requires them to fulfill their role as patient advocates in terms of protecting the patient from unnecessary or excessive practices, preventing unethical practices, informing patients about their rights, and ensuring that care is provided in the light of evidencebased practices in patient care.