One and a half year old baby ribs protruding, if it is caused by the body wasting, usually do not need to be treated, can be under the guidance of the doctor to supplement nutrition. But need to be alert to vitamin D deficiency and other diseases may, can follow the doctor’s instructions for vitamin D supplementation for treatment. One and a half year old baby if the body is more thin, less subcutaneous fat, in a flat state when the rib cage will appear more prominent, this situation is a normal phenomenon, generally do not need to be treated. Under the guidance of the doctor can be dietary guidance, appropriate nutrition, balanced diet can be. If a one-and-a-half-year-old baby’s ribs protrude more obviously, the front edge of the rib cage raised to become sharp, may be vitamin D deficiency caused by rickets. Suggest timely supplementation of vitamin D and calcium complex preparation, daily life pay attention to more sunshine. If the one and a half year old baby has the symptoms of rib protrusion, it is recommended to go to the hospital in time to improve the examination, to clarify the cause of the disease, and receive regular treatment.