What does "atypical squamous cells" mean? Is it serious? Does it mean cancer?

Generally, atypical squamous cells refer to abnormal cellular changes observed during cytological examination. They typically represent morphological abnormalities in squamous epithelial cells and are usually not cancerous; rather, they are considered precancerous lesions. A detailed explanation is as follows:

Squamous epithelial cells are a type of cell that covers body surfaces and internal organs, such as the skin, oral cavity, and esophagus. Under normal conditions, these cells exhibit regular morphology and orderly arrangement. However, when abnormal changes occur, the cells may display atypical shapes and structures. The presence of atypical squamous cells can be caused by various factors, including inflammation, infection, irritation, or injury. Importantly, atypical squamous cells are generally classified as precancerous changes, not cancer.

To determine the nature of these cells, further diagnostic evaluation is necessary. Patients are advised to seek medical attention promptly and undergo appropriate treatment based on the findings.