After evaluating the effect of TIMM8A on the survival of 15 cancers using the Kaplan-Meier plotter, we found that the highly expressed TIMM8A had the most significant effect on the survival of BRCA and UCEC, and with the PrognoScan database we reconfirmed that the highly expressed TIMM8A had the most significant adverse effect on the RFS and DMFS of BRCA. This evidence concerns the gene TIMM8A and cancer.