One side effect of chemotherapy is hair loss. For example, the commonly used paclitaxel drugs have a severe hair loss reaction, and it is possible to lose hair after one chemotherapy treatment. However, it is not certain that all patients will have hair loss reactions to paclitaxel or other chemotherapy drugs, some people do not have severe reactions and may lose their hair after 2-3 times. Of course, there are drugs that do not react heavily to hair loss, such as the application of regimens such as gemcitabine and fluorouracil, which do not react too heavily to chemotherapy and do not cause a more pronounced hair loss reaction. The hair loss reaction caused by chemotherapy is reversible, that is, after a period of recuperation, the hair will grow out again after nutrition enhancement, and the hair that grows out again may be better. So don’t be too nervous and make sure to cooperate with chemotherapy.