A biopsy technique is a procedure in which a sample of tissue or cells is removed from a person's body for examination under a microscope. This procedure is commonly used to diagnose various diseases, such as cancer or infections. There are different types of biopsy techniques, including needle biopsies, surgical biopsies, and endoscopic biopsies, each of which is used depending on the location and type of tissue being sampled. Biopsy techniques play a crucial role in the diagnosis and treatment of various medical conditions.