Cytology is the branch of biology that focuses on the study of cells, their structure, function, and behavior. It involves examining individual cells to understand their roles in health and disease. Cytologists use various techniques, including microscopy and staining, to analyze cell samples from tissues or fluids. This field is essential in medical diagnostics, particularly in identifying diseases like cancer. By studying cell samples, pathologists can detect abnormal cell growth or changes, aiding in early diagnosis and treatment. Overall, cytology plays a crucial role in advancing our understanding of cellular processes and improving healthcare outcomes.