Xiphoid process is a part of human sternum, and its size varies from person to person. The xiphoid process is a piece of cartilage located at the front and lower end of the chest wall. The upper end is connected with the sternum, and the lower end is free, about flat to the ninth thoracic vertebra. The sternum looks like a downward sword. The xiphoid process is the lowest part of the sternum.

If the xiphoid bone is not damaged or collided by external force, and it does not feel pain or discomfort when pressed by hand, it means that everything is normal.

? Exercising pectoralis major will not have any effect, so you can rest assured to exercise.