Inclusion criteria:

1. Adults diagnosed with colorectal, endometrial cancer and/or ovarian cancer fulfilling NHS clinical genetic testing criteria.

Exclusion criteria:

1. Patients who have had previous genetic testing for Lynch Syndrome, ovarian cancer, or colorectal cancer genes

2. Patients whose family has a known pathogenic variant in a cancer susceptibility gene, which is part of the panel the patient is eligible for undergoing testing.

3. Unable to provide informed consent.