Hi @afaqsworld, welcome to Mayo Clinic Connect. You'll notice that I moved your message to this existing discussion about CA19-9 levels. I did this so you can connect with other members more easily. Click VIEW & REPLY to scroll through past posts and see replies to your questions from members.

CA19-9 is only one indicator to signal the possible need for further investigation. Will your father have additional tests to find out what is going on?