Chemotherapy twice, tumor shrinks by half. Why?

The tumor reduction by half after chemotherapy may be related to the targeted effect of chemotherapy drugs, individual sensitivity to chemotherapy, precise treatment plan formulation, timeliness of treatment and other reasons. 1. Targeted effect of chemotherapy drugs Chemotherapy drugs can specifically act on rapidly proliferating tumor cells, inhibit tumor progression by interfering with cell division and growth processes, resulting in tumor volume reduction. Some patients may be particularly sensitive to specific chemotherapy regimens, allowing drugs to work more effectively, quickly control tumor growth and shrink it.3. Accurate treatment plan development Doctors will carefully formulate the most suitable chemotherapy regimen according to the patient's tumor type, stage, physical condition and other factors. This personalized regimen design helps to improve the treatment effect and achieve significant tumor shrink.4. Timely treatment Early start chemotherapy and treatment according to the prescribed cycle and dose can effectively attack the tumor before further development and spread, which is more conducive to tumor shrinkage. The reduction of tumor size by half in two chemotherapy sessions is the result of a combination of factors, including the characteristics of chemotherapy drugs, individual differences, precision of regimen, and timeliness of treatment. This positive result lays a good foundation for subsequent treatment, but it also needs close monitoring and evaluation to ensure the continued effectiveness of treatment and patient safety.