We drew a conclusion based on the meta-analysis outcome (HR = 1.94, 95% CI: 1.56–2.41, P < .001) that solid malignant tumor patients with high lncRNA SNHG12 expression is associated with poor survival rate, indicating that lncRNA SNHG12 may be an unfavorable prognosis factor to cancer. This evidence concerns the gene SNHG12 and cancer.