Biopsies are essential for diagnosing cancer, as they involve the removal of a small tissue sample for examination. There are several types, including needle biopsy, endoscopic biopsy, and surgical biopsy. The choice depends on the cancer's location and the patient's condition. Needle biopsy, for instance, is less invasive and often used for breast or prostate tumors, while surgical biopsy might be necessary for deeper tissues.
