A biopsy probe is a medical instrument used to collect tissue samples from the body for diagnostic purposes. It is often employed during a procedure called a biopsy, which helps doctors determine if a tissue is healthy or if it contains cancer or other diseases. The probe can be inserted through the skin or guided by imaging techniques like ultrasound or CT scans. Biopsy probes come in various designs, including fine-needle aspirators and core needle biopsy devices, each suited for different types of tissues and conditions. The collected samples are then examined under a microscope by a pathologist to provide crucial information for patient diagnosis and treatment planning.