IL4 and chronic cervicitis: In order to investigate the expression levels of serum IFN-γ, IL-4, and tumor necrosis TNF-α in patients with cervicitis complicated with human papillomavirus (HPV) infection and clinical significance, a retrospective study was conducted on 90 patients with chronic cervicitis complicated by HP V infection who visited our hospital from June 2020 to June 2021, and they are included in the research group.