Given the increased cancer risk, individuals with HNPCC are advised to undergo regular screening. For colorectal cancer, it is recommended to start colonoscopies at the age of 20-25, or 2-5 years earlier than the youngest age at diagnosis in the family. Screenings should be repeated every 1-2 years. For women, annual endometrial and ovarian cancer screening is recommended, starting between the ages of 30-35. Other cancer screenings may be advised based on individual risk factors and family history.
