Capecitabine is a kind of chemotherapeutic drug, no reaction on the tenth day of taking it after surgery, it is possible that it is a good thing, and patients are advised to review it regularly to observe the condition. Capecitabine is a kind of chemotherapeutic drug mostly used for colorectal cancer patients, the short-term efficacy is often obvious, but in the course of treatment, it is easy to have diminishing effect, and at the same time, it is easy to cause some intolerable side effects, such as common gastrointestinal reactions, including nausea, abdominal pain, and vomiting, etc; systemic symptoms, such as fever, fatigue, weakness, and pain in the limbs. The fact that a patient has been taking capecitabine tablets for ten days without a reaction could possibly mean that the patient is tolerating the drug relatively well, which is why there are no significant side effects. In order to make a clear judgment, it is recommended to undergo routine blood tests to see if it causes a drop in white blood cells. Prolonged use of capecitabine tablets may cause liver and kidney impairment, which requires regular review. In addition, the dosage of capecitabine and the course of its use need to be guided by a specialist.