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Beyond Lifestyle: Unveiling Genetic Cancer
9 Jan
Summary
- Up to 10% of cancers stem from inherited genetic changes.
- Certain genes increase lifetime cancer risk significantly.
- Early screening and awareness are vital for hereditary cancers.

While many associate cancer with lifestyle or random chance, a significant portion, estimated between 5-10%, arises from inherited genetic mutations passed from parents to children. These inherited predispositions do not guarantee cancer but markedly increase the risk, often leading to earlier onset or multi-generational family occurrences. Awareness of these genetic links is growing, emphasizing the need for open conversations beyond medical jargon.
Common hereditary cancers include those of the breast, ovary, colon, prostate, and skin. For instance, BRCA1 and BRCA2 mutations dramatically raise lifetime breast cancer risk for women, necessitating screening to begin in the mid-20s. Similarly, Lynch syndrome and FAP are linked to early-onset colorectal cancer, requiring earlier and more frequent colonoscopies. These genetic risks underscore the importance of personalized screening schedules.




