Baby’s right rib pain may be related to trauma, localized lesions, inflammation and other factors. 1. Trauma: If the baby has a recent history of trauma, it may lead to local muscle strain or fracture, which may cause right rib pain. 2. Localized lesions: Commonly there is costochondritis, this localized lesion may lead to muscle spasm, strain, etc., which may lead to the above situation. 3. Inflammation: Since the right side of the ribs involves the gallbladder and kidneys, etc., when inflammation occurs in these parts, the baby’s right side of the ribs will also experience pain. There may be other reasons for your baby’s right rib pain, so we recommend that you go to the hospital for a timely examination to determine the cause of the problem and then actively treat the symptoms.