A biopsy is a medical procedure in which a doctor collects a small sample of tissue from the body to be examined under a microscope. This technique allows specialists to obtain tissue from nearly any area, depending on the location of the suspected abnormality.

Biopsy results are among the most accurate tools for detecting cancer. They help determine whether the cells are benign or malignant and provide critical information about the type, origin, and extent of the disease. This insight is essential for guiding further diagnosis and developing the most effective treatment plan.