Squamous epithelial cell carcinoma antigen is the tumor marker of choice for cervical cancer screening, which is normally less than 2.5ug/L or so. If a woman is found to have elevated squamous epithelial cell carcinoma antigen, it may be caused by chronic inflammation, such as chronic peritonitis, pelvic inflammatory disease or cervicitis. However, for women with particularly high squamous epithelial cell carcinoma antigen, cervical cancer may also be considered, so it is best to have a cervical TCT and HPV test. If there are cauliflower-like growths on the cervix, recurrent contact bleeding and vaginal discharge, further biopsy under colposcopy should be considered to confirm the diagnosis. Although squamous epithelial cell carcinoma antigen is not 100% confirmatory of cancer, it is useful in the diagnosis of cervical cancer.