Lynch syndrome confers an inherited genetic predisposition — but environmental and lifestyle factors also influence how that risk is expressed.
Current evidence indicates that chronic inflammation may contribute to tumour development in mismatch repair-deficient cells. Modifiable factors — including regular physical activity, avoiding tobacco, and a diet high in fibre and low in processed meat — may therefore support risk reduction.
These measures complement, but do not replace, established clinical surveillance.
Lynch Syndrome Ireland 