专业英语胃溃疡

In fact I know little about Peptic Ulcer disease ,however my mentor is studying it at present ,so I will study it in the future, I search some informition about Peptic Ulcer disease on the internet ,maybe it has some mistakes.i hope that you don’t mind.
Peptic Ulcer disease is defined as an ulcer occurring in a region that touches gastric acid(胃酸) and pepsin(胃蛋白酶) and usually refers to gastric ulcer(胃溃疡) or duodenal ulcer(十二指肠溃疡). It is called a peptic ulcer, because of previous gastric ulcer and duodenal ulcer that was due to gastric acid and pepsin digestion of the mucous membrane formed their own. Gastric acid and pepsin in fact only one of the main ulcer formation, there are other reasons for the formation of ulcer disease. Because the cause of gastric ulcer and duodenal ulcer, and there are many similarities between clinical symptoms, the doctor is sometimes difficult to distinguish between gastric ulcer or duodenal ulcer, it is often diagnosed as peptic ulcer or gastric ulcer .
Symptoms
There are some common symptoms about Peptic Ulcer disease.
⏹back to acid
⏹belching(打嗝)、nausea(恶心)、bloating(胀气)
⏹Upper abdominal pain
Ulcer disease with recurrent abdominal pain on the rhythm of clinical features, often accompanied by belching, back to acid, and even nausea, vomiting, vomiting blood, blood in the stool.
Upper abdominal pain, chronic, cyclical rhythm of abdominal pain is typical of the main symptoms of peptic ulcer.
Complications(并发症)
⏹Bleeding it is the most common complication for peptic ulcer disease
⏹Perforation Duodenal ulcer incidence was higher than that of gastric ulcer
⏹Pyloric obstruction it mostly occurs in duodenal ulcer
⏹Helicobacter pylori (H.p) can colonize the gastric mucosa and increase acid secretion
Research data show that NSAID use in patients with peptic ulcer and the risk of complications was significantly higher than the general population. By weakening mucosal defense and repair functions eventually lead to peptic ulcer.
The eventual formation of peptic ulcer is due to acid and pepsin digestion of the mucosa itself. Because the biologic activity of pepsin is depended on the pH value. When local pH value elevates to 4, pepsin can’t work well. So we often say that “No acid, no ulcer.”
) Smoking
Smoking is an increased risk of peptic ulcer. Smoking can affect the healing of ulcer, accelerate ulcer recurrence, and increased complication of ulceration. But the mechanism isn’t clear.
2)Heredity
Patients with peptic ulcer often have a family history of ulcer.And some studies show that blood group O（O型血人群）have a high risk to developing peptic ulcer .
3)Stress High stress can stimulate vagus nerve(交感神经), which can result in high secretion of acid .。