In addition, it has also been confirmed that CDCA5 was significantly upregulated in breast cancer, bladder cancer, oral squamous cell cancer, urinary tract carcinoma, head and neck squamous cell carcinoma, and esophageal squamous cell carcinoma, and the high expression of CDCA5 was closely related to pathological stages and poor prognosis of patients [31–36]. The gene discussed is CDCA5; the disease is head and neck squamous cell carcinoma.