Ulcer

Ulcers are open sores that can occur in the lining of the digestive tract. They usually form in the stomach and duodenum, the first part of the small intestine. They can also occur in the esophagus, which is the tube that connects the mouth to the stomach. Ulcers are caused by a number of different factors, including stress, medications, and bacterial infections. The most common cause of ulcers is an infection with Helicobacter pylori, a type of bacteria. In some cases, ulcers can be caused by non-steroidal anti-inflammatory drugs (NSAIDs), such as aspirin and ibuprofen. Ulcers can cause a variety of symptoms, including abdominal pain, nausea, vomiting, loss of appetite, and weight loss. If the ulcer is in the stomach or duodenum, the pain may be worse when the stomach is empty. The pain may also be worse at night. Other symptoms can include feeling bloated and burping. If the ulcer is bleeding, the person may vomit blood or pass black, tarry stools. Ulcers can be treated with antibiotics, antacids, or other medications that reduce the amount of acid in the stomach.