Chicken breast means that the sternum protrudes forward significantly, while the ribs on both sides slope downward and inward, causing the breast to become shaped like the sternum of chickens, pigeons, and other birds, hence the name "chicken breast". Chicken Breast It is mostly caused by rickets in children, that is, the lack of enough vitamin D in the body causes obstacles to the absorption of calcium and phosphorus, resulting in osteomalacia. The connection between the chest ribs and the sternum is indented, causing the sternum to protrude, forming pectus pectus. This deformity is often seen in children. It is formed around 1 year old. In fact, the chicken breast we see after 2 to 3 years old is the sequelae of childhood rickets. In addition to chicken breast, children often have other deformities, such as square heads, "X" shaped legs, and " O”-shaped legs, etc. In addition to affecting the appearance of the body, severe chicken breasts compress the heart and lungs due to the inwardly concave ribs on both sides, which has a certain impact on circulation and respiratory functions. Children are prone to fatigue and repeated respiratory infections. For children with chicken breast under 3 years old, anti-rickets treatment should be actively given, including calcium and vitamin D supplementation. Children after 3 years old mostly have sequelae, and calcium and vitamin D treatments are ineffective. Mild chicken breast usually follows Physical growth will gradually disappear. Strengthening physical exercises, such as chest expansion exercises, push-ups, head-raising and other exercises, two to three times a day can accelerate the correction of deformities. Generally speaking, mild chicken breasts do not have a great impact on the heart and lungs. , and the current effect of surgical treatment of chicken breast is not satisfactory. In addition, boys should strengthen their pectoralis major exercises during the growth and development period to make them plump and strong, which can improve the appearance of chicken breast protrusion deformity. After puberty, the development of breast glands in girls will also be affected. It makes up for the deformity of the sternum in appearance. Therefore, unless the deformity is severe, surgical treatment is generally not recommended.