Gastric cancer ranks first among various malignant tumors in China. The incidence of gastric cancer has significant regional differences, with a significantly higher incidence of gastric cancer in the northwestern and coastal cities in the eastern region of China than in coastal areas. It is more common in people over 50 years old, with a male-to-female ratio of 2:1. The prognosis of gastric cancer is related to the pathological staging, location, tissue type, molecular biological behavior, and treatment measures of gastric cancer.

Seeing the pain of people around us with gastric cancer makes us afraid of gastric cancer, and we also want to know more about professional knowledge, so how many stages are there in gastric cancer?

How many stages are there in gastric cancer?

Stage 0 of gastric cancer staging: the tumor has infiltrated the mucosal layer, but has not invaded the original mucosal layer, and there is no partial cancer metastasis.

Stage IA: Any tumor that has infiltrated into the mucosa or submucosal layer has no partial cancer metastasis.

Stage IB: The tumor has infiltrated into the mucosa or submucosal layer, accompanied by cancer metastasis within 3CM from the primary tumor; or the tumor has infiltrated the muscular layer or subserosal layer, but there is no partial cancer metastasis.

Stage II: The tumor has infiltrated into the mucosa or submucosal layer, but there is partial cancer metastasis beyond 3CM from the primary tumor; the tumor has infiltrated the muscular layer and subserosal layer, but there is only partial cancer metastasis within 3CM from the primary tumor; or the tumor has penetrated the serous membrane layer, but there is no cancer metastasis.

Stage IIIA: The tumor has infiltrated the muscular layer or subserosal layer, and there is cancer metastasis beyond 3CM from the primary tumor; the tumor has penetrated the serous membrane outside, but there is only cancer metastasis within 3CM; or the tumor has invaded adjacent tissues and organs, but there is no cancer metastasis.

Stage IIIB: The tumor has penetrated the serous membrane layer and has cancer metastasis beyond 3CM; or the tumor has invaded adjacent tissues and organs, but there is cancer metastasis within 3CM.

Stage IV: The tumor has invaded adjacent tissues and organs, and there is cancer metastasis beyond 3CM from the primary tumor; or there are distant metastases of all T and N.

What is the worst human type in the prognosis of advanced stage?

Advanced gastric cancer refers to the infiltration of cancer tissue into the submucosal layer, into the muscular layer, or beyond the muscular layer to the serous membrane. At this stage, it is divided into several types according to the shape of the human eye, such as cystic type, ulcerative type, and infiltrative type. Infiltrative gastric cancer often causes the gastric wall to thicken and harden, resulting in leather stomach.

Based on the symptoms of gastric cancer at each different stage, we can choose different treatment methods to resist the growth and spread of tumor cells, and restore to the previous healthy condition.