High squamous epithelial cell antigen may be non-neoplastic, or it may indicate a neoplastic condition such as lung, cervical, or skin cancer. Confirmation of a tumor usually requires a combination of symptoms and other physical indicators to further confirm the diagnosis. Patients with non-neoplastic diseases show only a transient simple elevation of squamous epithelial cell antigen. It is likely to be caused by benign lesions such as liver disease, tuberculosis, tuberculosis, hemodialysis, etc. When the primary disease is cured, this antigen indicator usually returns to normal. Squamous epithelial cell antigen in neoplastic diseases usually manifests itself as a chronically high and substantially increasing value. It is an important indicator for the diagnosis of lung cancer, cervical cancer, skin cancer, esophageal cancer and other malignant tumors. However, squamous epithelial cell antigen alone cannot diagnose the stage of cancer, it needs to be combined with CT and pathology report for further diagnosis. High squamous epithelial cell antigen is recommended to follow the doctor’s instructions for examination and treatment.