The risk signature was established by selecting WTAP, YTHDC1 and FTO, and the risk scores of BC patients were calculated through the LASSO Cox regression model, where the coefficient of YTHDC1 was −0.081, the coefficient of FTO was 0.164, and the coefficient of WTAP was −0.032 (Figure 4C). The gene discussed is YTHDC1; the disease is breast cancer.