The prevalence and degree of diastasis recti is very common during and after pregnancy, but will differ from person to person depending on the stage. One study found the prevalence of diastasis recti among participants to be 33.1% at week 21 of pregnancy, 60.0% at the six-week postpartum mark, 45.5% by six months postpartum, and 32.6% at 12 months postpartum.