The kind of chest retractions you have depends on their location. Subcostal retractions: When your belly pulls in beneath your rib cage. Substernal retractions: If your belly pulls beneath your breastbone. Suprasternal retractions: When the skin in the middle of your neck sucks in.
Substernal retractions: substernal retractions are the inward movement of the muscles below the sternum. See detailed information below for a list of 16 causes of Substernal retractions, Symptom Checker, including diseases and drug side effect causes.