04/22/2026
Rib flare is when the lower ribs lift or push forward instead of staying stacked over the pelvis. It’s common in pregnancy, postpartum, and in those with scoliosis.
During pregnancy, the ribcage naturally expands to make space for the baby, but postpartum, many people stay in that expanded position without realizing it 😭
The problem is that this changes how your core system works. For the diaphragm and pelvic floor to function well together, the ribs need to be stacked over the pelvis. When they’re not, core engagement becomes inefficient and pressure is poorly managed through the system.
You’ll often see this paired with an excessive lower back arch or a lifted chest, creating a “scissor” pattern where the ribs stay open and the pelvis tips forward.
Breathing is also affected. Rib flare keeps the body in a more inhale-dominant state, where the ribs don’t fully come down on the exhale and the diaphragm doesn’t fully reset. Over time, this can reduce stability and contribute to tension through the back, hips, and shoulders, especially in postpartum bodies or those working on diastasis recti.
The goal isn’t just to “pull the ribs down,” but to retrain how they move: expand into the back and sides of the ribcage, fully exhale so the ribs can descend, and then build strength while maintaining that stacked position.
If you want to be guided step by step through a rib flare class, COMMENT “RIB FLARE” and I’ll send you a link to the class with a 7 day free trial ✨