Is grandma's stomach cancer hereditary?

Is my grandmother's stomach cancer hereditary? There is a tendency for stomach cancer to cluster in families. The familial inheritance of cancer is currently believed to be caused by chromosomal aberrations, which are sometimes passed on to offspring. However, this inheritance is not a direct cancer inheritance, but an individual's tendency to develop cancer. When the body's immune function is low or defective, it can increase the susceptibility to stomach cancer, and the mutant cells cannot be eliminated in time at the budding stage, leading to the occurrence of stomach cancer.

Gastric cancer has certain genetic factors, but it is not directly inherited, it is just a tendency or susceptibility. The familial inheritance of cancer is currently believed to be caused by chromosomal aberrations, which are sometimes inherited by offspring, but this inheritance is not direct cancer inheritance, but an individual's tendency to develop cancer. When the body's immune function is low or defective, it can increase susceptibility to gastric cancer, and the mutant cells cannot be eliminated in the bud stage in time, leading to gastric cancer. ABO blood type research shows that gastric cancer is related to type A blood, but only diffuse gastric cancer is related to it.

With the recent application of molecular genetics in human cancer research, people have gradually come to realize that cancer is the dominant effect of activated cell genes. This is essentially caused by some gene mutations, which destroy the coordination of controlling and regulating normal cell growth and development, making it difficult to determine the role of cell genetic factors in the etiology of human gastric cancer, which needs further study.