Is it normal to pop your sternum?
Mostly.Normal for most people
An occasional, painless pop or click around your sternum is usually harmless. If it hurts, started after an injury, or comes with swelling or trouble breathing, get it checked.
Yes—some people feel or hear a pop near the breastbone when they stretch or move. It often comes from the joints and cartilage where the ribs meet the sternum, rather than the sternum itself, and a painless occasional click is usually no big deal.
Try not to force it, especially if it causes pain. If the popping is painful, keeps happening after an injury, or comes with swelling or trouble breathing, get it checked by a healthcare professional.