What exactly is an ulcer?

Related questions

1. Why is my fart so stinky?
2. Can ulcers turn into cancer?
3. How do you know if your ulcer is bleeding?
4. What is the main cause of stomach cancer?
5. Is an ulcer serious?
6. How do doctors check for ulcers?
7. How do you check your stomach?
8. What is bad gas a sign of?
9. What does a healing ulcer look like?
10. What stomach cancer looks like?

Tags

1. #spicy
2. #factors
3. #worse
4. #develop
5. #ulcers
6. #sores
7. #lining
8. #intestine
9. #stress
10. #esophagus
11. #stomach
12. #known
13. #first
14. #already
15. #peptic
16. #caused
17. #these
18. #small
19. #duodenum
20. #someone