But if you only look at the stage of the cancer, your educated guess may not be the best it can be. To make sure you have the most accurate estimate, you must look at other factors as well. For example, gardeners can also take the wind into consideration. The gardener can look at the direction of the wind and the speed of the gusts to determine how it will affect the spreading of seeds.
Luckily, unlike gardeners, doctors have very advanced tools that help them estimate the chance a patient’s cancer will return. Instead of an educated guess, these tools use complex mathematical calculations to predict a patient’s prognosis. Usually, doctors will give the estimates as percentages.