Pectus carinatum, commonly known as pigeon chest, is a typical chest deformity characterized by a protruding sternum. There are various causes for pigeon chest, such as rickets due to vitamin D deficiency, and some hereditary metabolic diseases may also lead to bone development malformations like pigeon chest. If pigeon chest is caused by rickets, it is necessary to supplement adequate vitamin D, engage in appropriate outdoor activities, and receive sufficient exposure to ultraviolet light. Additionally, mild cases of pigeon chest can be treated with pediatric rehabilitation using active or passive methods for correction. In severe cases of chest deformity, surgical correction may be required. Generally, there are no effective solutions for hereditary diseases, and treatment mainly focuses on managing the symptoms accordingly. Therefore, if a child is suspected of having pigeon chest, it is advised to consult a specialist at a hospital to assess the child's condition and provide corresponding treatment.