A biopsy test is a medical procedure that involves removing a small piece of tissue from the body for examination. It is commonly used to investigate the presence of abnormal cells or diagnose medical conditions. The sample is sent to a laboratory for analysis, and the results can provide critical information to healthcare providers about disease progression and treatment options. Biopsy tests are safe and non-invasive, and your healthcare provider will provide you with information about what to expect and how to prepare.