For patients whose cancer has been relatively stabilized after treatment, it is recommended that the review time for the first three years be about every three months; if the condition is stabilized, half-yearly reviews between three and five years; and annual reviews after five years. Cancer is a common malignant disease caused by a combination of internal and external factors such as heredity and environment. Since there is a certain recurrence rate, regular checkups are usually required after standardized treatment to reduce the recurrence rate and prolong the survival period. The time of review varies with the time of discharge from the hospital. Generally speaking, the recurrence rate is higher within five years after the operation, but due to the difference of the disease, the specific review time may be different, so just follow the doctor’s instructions for regular review.