These types of cancer have the highest chance of being inherited

10% of cancers are genetically related

The vast majority of cancers are not hereditary, but about 10% to 15% of cancers are caused by heredity. There are two manifestations of familial cancer: one is that many people suffer from different cancers, and the other is the existence of a certain cancer clustering phenomenon in a family. Although familial cancer can indicate that cancer is hereditary, it does not mean that everyone will inherit it. Most cancers are the result of the interaction between genetic and environmental factors. Common living environments and habits make families more susceptible to the same cancers. The following four malignancies have a clear genetic predisposition:

Colorectal cancer

There is a condition called familial adenomatous polyposis that can easily develop into bowel cancer. It has been observed that if parents in a family suffer from colon cancer caused by the above diseases, their children have a 50% chance of developing the same type of cancer.

Breast cancer

Women whose mothers or sisters have had breast cancer are three times more likely to develop breast cancer than the average woman. Therefore, in addition to age, diet, obesity and other factors, the incidence of breast cancer is also closely related to genetics. In addition, bilateral breast cancer is more hereditary.

Retinoblastoma

Some retinoblastomas are also linked to genetic defects. This is a malignant tumor that is more common in children. About 1/3 of patients have bilateral disease, and it is dominantly inherited, which means that the disease can be found in several generations of a family. The other two-thirds occur only on one side, and about 10% of these are hereditary.

Lung cancer

Reports show that if a person has a close relative with lung cancer and he smokes, his risk of developing lung cancer is 14 times higher than the average person. A survey by Japanese scholars showed that 35.8% of patients with squamous cell lung carcinoma had a family history; among female patients with alveolar cell carcinoma, as many as 58.3% had a family history.

Early prevention can avoid

Hereditary cancer is not scary. If you know that there is a genetic history of a certain cancer in your family, you should take early prevention measures. First of all, you need to take good care of yourself, change bad eating habits, eat less fried, smoked and grilled foods, quit smoking and limit alcohol, and eat more anti-cancer foods, such as tomatoes, sweet potatoes, milk, etc. Secondly, we must develop good living habits, have a regular work and rest schedule, not stay up late, and stay away from decoration pollution; strengthen physical exercise to enhance resistance; and maintain a good attitude and look at cancer correctly. In addition, regular physical examinations and screenings should be conducted every year. Once early signs of cancer are found, timely treatment should be sought to control the disease.