Find out about stomach ulcers, including symptoms, causes, treatment and when to get medical help. Ulcers result from a breakdown in the protective lining that guards the tissue from irritants like stomach acid. Once the lining is eroded, the tissue underneath becomes exposed and damaged, leading to pain, bleeding, and sometimes infection. Learn about stomach ulcers, their symptoms, causes, treatments, and effective home remedies with expert advice from Dr. Pawan Rawal, top gastroenterologist in India. Ulcers are sores that can develop on the outside or inside of your body. Learn more about the different types of ulcers and how to treat them.