Trajectories of lower back, upper back, and pelvic girdle pain during pregnancy and early postpartum in primiparous women

Most studies about truncal pain during and after pregnancy focus on low back pain, few prospectively define change in pain, and even fewer evaluate pain in all three major truncal areas: upper back, lower back, and pelvic girdle. Thus, the objective of this prospective cohort study was to describe, in primiparous women delivered vaginally, prevalence rates and severities of upper back, lower back, and pelvic girdle pain during pregnancy and 6–10？weeks postpartum and to describe the trajectory of pain constellations between time points