The following measures can be used to deal with a seven-month-old child’s rib ectopia: 1. First, watch and wait. The reason why some children have rib ectropion is due to physiological reasons. As children are relatively young, the ribs are not yet fully ossified, especially the lower edge of the rib ossification is more delayed, this time there will be physiological temporary rib ectropion. As children get older, the lower ribs gradually ossify completely, and the rib ectropion will disappear naturally. 2, secondly, timely calcium and vitamin D supplementation, children’s rib ectropion is due to vitamin D deficiency rickets, you can give the children timely application of vitamin D and calcium gluconate and other treatments.