how long will it take for xiphoid cartilage to disappear? is it something to be concerned about? my baby is 25 days .

A. Hello ma’am As per my information and knowledge it does not settle down on its own you have to consult a doctor it may need a surgery or something but since only a doctor can check and suggest you what do you need to do for it and without check up nothing can be suggested I would advise you to consult a doctor as soon as you can for the same