As rs11081899-A was significantly associated with an enhanced risk of severe mucositis (OR = 14.631, 95% CI = 2.61-105.46, p = 1.2 × 10−4), and positively associated with ZNF24 mRNA expression (p = 4.1 × 10−6), we hypothesized that ZNF24 may play a role in the development of radiation-induced mucositis. The gene discussed is ZNF24; the disease is mucositis.