What are the symptoms of an ulcer? That includes any kind of ulcer.

I'm just wondering because I've heard it is common to have an ulcer in your small intestine because the food isn't completely digested and it can cause an ulcer. How do you know if you have one? Thanks!

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.