Capecitabine, whose main ingredient is capecitabine, is an antineoplastic agent used for adjuvant chemotherapy in colon, rectal, gastric and breast cancers. It is indicated for receiving fluoropyrimidines alone, monotherapy adjuvant therapy, etc. The adverse reactions of capecitabine have been described more comprehensively, which may occur after taking the drug. It is clearly documented that some people may experience hair loss after taking the drug, but it is not a common adverse effect, only some patients have hair loss, and normal hair can grow back after a few months after stopping the drug.