Analysis of the whole genome data of 2683 pan-cancer cases in The Cancer Genome Atlas dataset found that amplification, deep deletion, gain, shallow deletion, diploid, truncating mutation, and missense of ALDH1A1 occurred at 2.3% or less, but no complete censoring occurred, and gene amplification did not significantly upregulate the level of the gene. Here, ALDH1A1 is linked to cancer.