No, unless you are wearing the posture corrector incorrectly. If you experience pinching either you are wearing it too tight or you are slouching your shoulders into the posture corrector too much. Loosen the straps to your comfort level and pull those shoulders back! That's the beauty of NeuBack™ - Mochi Man Posture Corrector, if you are slouching, it will become uncomfortable, forcing you to keep your shoulders back to regain comfort. It is the perfect way to strengthen your muscles to develop long-term healthy posture.