High incidence rate, low early diagnosis rate and high mortality rate In many western countries, the incidence rate of gastric cancer has been on a decreasing trend; however, in many regions of China, the incidence rate and mortality rate of gastric cancer have still been increasing year by year in the past 20 years. At present, there are nearly 200,000 new cases of gastric cancer in China every year, accounting for 17.2% of all malignant tumors, ranking at the forefront of malignant tumor incidence. About 160,000 people die from stomach cancer every year, and its mortality rate accounts for 23.02% of all malignant tumor deaths, ranking first in cancer deaths. Early symptoms of gastric cancer include: 1. hidden pain in the upper abdomen or stomach, or stuffy stomach and epigastric discomfort; 2. nausea, vomiting, belching, or acid reflux and heartburn; 3. loss of appetite, indigestion and weakness; 4. vomiting blood or black stool. Diagnosis of gastric cancer: Gastroscopy is the first choice for diagnosing gastric cancer. Gastroscopy is clear and can directly observe the lesions of gastric mucosa, especially for augmented, distended and ulcerated lesions, biopsy can be done at the same time to make a clear diagnosis soon. Surgical treatment: 1. Radical surgery: also known as curative resection, the primary lesion of gastric cancer is removed together with the surrounding tissues and the corresponding regional lymph nodes, without leaving any cancerous tissues. The key to radical surgery is to remove enough regional lymph nodes. Foreign studies have found that the number of lymph nodes removed in gastric cancer surgery is closely related to the survival time of patients after surgery. 2.Palliative resection: For patients with metastasis, palliative resection is still feasible as long as the patient’s general condition permits; for patients who cannot be resected, gastric-jejunostomy can be performed as appropriate to release the obstruction, so that the patient can eat to improve the general nutrition and create conditions for drug treatment. Other treatment methods: adjuvant chemotherapy after radical surgery can achieve the best treatment effect for gastric cancer patients; radiotherapy can be used as a supplement to surgical treatment. For patients with intermediate and advanced gastric cancer, chemotherapy and radiotherapy can be administered before surgery to improve the surgical resection rate and treatment effect. In recent years, targeted therapy is emerging and brings new hope to some patients with mid- to late-stage gastric cancer. In addition, traditional Chinese medicine also has certain efficacy on gastric cancer.