Canestest helps to diagnose common vaginal infections such as thrush and bacterial vaginosis to help you confidently select the right treatment. From the makers of Canesten. New Canestest is a one-step self-test to help diagnose common vaginal infections, such as thrush or bacterial vaginosis. It is clinically proven to indicate clearly the type of infection within 10 seconds with a simple change of colour and with more than 90% accuracy. The single swab test allows you to self-diagnose in the comfort of your own home, allowing you to confidently diagnose your intimate health conditions and select the right product to start treatment straight away.