The chance of survival after 6 times of chemotherapy for cancer depends on the patient’s treatment effect. Generally speaking, cancer requires 6 times of chemotherapy, which means that the cancer has reached the middle and late stage, and the chance of long-term survival is not more than 50%. If the original tumor has completely regressed and the enlarged lymph nodes have disappeared after 6 times of chemotherapy, the efficacy will be evaluated as complete remission, and the 5-year survival rate can generally reach 50% or more, and recurrence usually occurs within 2 years. If the lump shrinks 75% or more after 6 times of chemotherapy, the efficacy is evaluated as partial remission, and the 5-year survival rate can reach 30% or more. After 6 times of chemotherapy, the lump does not shrink, and even appears to increase by more than 25%, the efficacy evaluation is stable or progressive disease, and the 5-year survival rate is generally no more than 20%, so it is necessary to change the regimen and continue treatment, otherwise recurrence is inevitable. Of course, this is only for the general situation, the survival rate varies for different tumor types.