Gastric cancer is a common cancer of the digestive system in clinical practice. Gastric cancer cells are also known as mucinous cell carcinoma, which is a special type of gastric cancer in clinical practice. Gastric cancer cells are found to have a large amount of mucus in the examination and the nucleus is biased to one side, which is very similar to a ring in appearance, so in the morphology of gastric cancer, it is called imprinted cell carcinoma. This type of gastric cancer is difficult to detect in the early stage and is very similar to chronic gastritis. Many people treat it as gastritis, and it is already in the middle or late stage when it is found. Therefore, once you feel similar symptoms and the symptoms cannot be relieved by treating it as gastritis, it is recommended to be admitted to hospital for gastroscopy in time, and if it is found to be so, pathological examination can confirm the diagnosis. According to the different degrees of cell differentiation, it can be divided into three types: highly differentiated, moderately differentiated and low differentiated. Gastric cancer cells are very important for human to study the causes and pathogenesis of gastric cancer, as well as for the study of gastric cancer and diagnosis.