Postpartum sexual health has historically been viewed and discussed in specific ways, often dominated by biomedical discourse. There is a need to expand understandings of sexual health for postpartum women in the context of interdisciplinary health care. Research surrounding postpartum sexual health is largely focused on physical measures, such as vaginal lubrication or initiation of intercourse, without accounting for the diverse and subjective ways that sexuality and sexual health are experienced during the postpartum period. This critical analysis uses feminist post-structuralism to critique and analyze current health research and practice surrounding postpartum sexual health. Agency, subjectivity, gender and sex considerations, relations of power, and discourse are essential to understanding postpartum sexual health in a more holistic, woman-centered way. This includes awareness of dominant discourses that have shaped how health researchers, practitioners, postpartum women, and health institutions care for, support, and promote postpartum sexual health. There is a need to move beyond physically focused, reductionist, heteronormative understandings of sexual health to better promote overall postpartum health and wellbeing.