Mild chicken breast has an inconspicuous protrusion of the lower part of the sternum and its adjacent rib cartilage toward the front of the thorax, which has little effect on cardiopulmonary function and does not cause symptoms. Calcium gluconate and vitamin D can be given to mild chicken chest, increase sunlight exposure, and mild chicken chest can be corrected on its own in the later growth and development process. If mild chicken chest progresses forward and moderate or severe chicken chest develops, it needs to be treated with sternal support, which can usually be corrected after 2-3 years. If the effect of treatment is not good, surgery can also be performed to correct moderate or severe chicken chest, so as not to affect the function of the heart and lungs.