{"id":277427,"date":"2026-05-05T12:35:41","date_gmt":"2026-05-05T12:35:41","guid":{"rendered":"https:\/\/pharmeasy.in\/blog\/?p=277427"},"modified":"2026-05-05T12:35:42","modified_gmt":"2026-05-05T12:35:42","slug":"diagnostic-is-cancer-a-genetic-disease-hereditary-risk-genetic-testing-guide","status":"publish","type":"post","link":"https:\/\/pharmeasy.in\/blog\/diagnostic-is-cancer-a-genetic-disease-hereditary-risk-genetic-testing-guide\/","title":{"rendered":"Is Cancer a Genetic Disease? Hereditary Risk & Genetic Testing Guide"},"content":{"rendered":"\n\n<\/head>

Table of Contents<\/p>\nToggle<\/span>

Introduction<\/a><\/li>
Is Cancer Genetic?<\/a><\/li>
Types of Genetic Changes that Cause Cancer<\/a><\/li>
Signs You May Have a Hereditary Cancer Risk<\/a><\/li>
What is Genetic Testing for Cancer?<\/a><\/li>
How is Genetic Cancer Testing Done to Determine Risk of Inherited Cancers?<\/a><\/li>
When to Consult a Doctor?<\/a><\/li>
Conclusion<\/a><\/li>
Frequently Asked Questions (FAQs)<\/a><\/li>
References<\/a><\/li><\/ul><\/nav><\/div>\n \n <\/span>\n $\"Join$ \n <\/a>\n
<\/span>Introduction<\/strong><\/span><\/h2>\n\n\n\n
Cancer can be confusing, especially when people talk about genes. Some people think that if cancer runs in the family, they will definitely get it. Others believe cancer happens randomly and has nothing to do with genes. The truth lies somewhere in the middle.<\/p>\n\n\n\n
Most cancers develop from gene changes that happen during the lifetime of an individual due to factors such as aging, lifestyle, and environment, though some cancers can be inherited from parents 1<\/a>,2<\/a><\/sup>. However, cancer itself doesn\u2019t pass from parents to children, and the changes in cancer cells also aren\u2019t passed down. But for certain cancers, parents can pass on some genes that increase the chance of developing that cancer in the offspring (subsequent generation)1<\/a><\/sup>. Understanding this helps people know their risk better and take appropriate measures.<\/p>\n\n\n\n
In this blog, we will explore whether cancer is a genetic disease or not, explain the difference between somatic and hereditary cancers, and discuss how family history and genetic testing can help identify individuals at a higher risk.<\/p>\n\n\n\n
<\/span>Is Cancer Genetic?<\/strong><\/span><\/h2>\n\n\n\nCancer is a genetic disease, but it is not always inherited. Cancer develops when specific genes undergo mutations (changes) that affect how cells grow, divide, and repair themselves. These mutations can cause cells to proliferate uncontrollably, resulting in cancer cell formation. These genetic changes are the root cause of all cancers 1<\/a><\/sup>.<\/p>\n\n\n\n
Genetic changes can happen in two different ways:<\/p>\n\n\n\n
1. Somatic Cancer (Sporadic Mutations)<\/strong><\/h3>\n\n\n\nThis is the most common type. Here, gene changes occur during\u202fa person\u2019s lifetime. They are not present at birth and are not handed down to the generations. These genetic changes or mutations may be caused by aging, environmental exposures (such as pollution and radiation), lifestyle factors (such as smoking, poor diet, or lack of exercise), infections, etc 1<\/a>,2<\/a><\/sup>.<\/p>\n\n\n\n
2. Hereditary or Inherted Cancer (Germline Mutations)<\/strong><\/h3>\n\n\n\nThis type is less common (only up to 10% of cancer are caused by inherited gene changes)1<\/a><\/sup>. Here a person acquires a gene mutation from their parents. This mutation is present in their cells from early life and can increase the risk of certain cancers. These inherited changes can also be passed on to the next generation from father\u2019s sperm or mother\u2019s egg (germ cells). Examples of hereditary cancer syndromes include BRCA1\/BRCA2-related breast and ovarian cancer and Lynch syndrome (an inherited condition that increases a person\u2019s risk of developing certain cancers, especially colon and endometrial cancer, at an early age)3<\/a><\/sup>.<\/p>
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