👉 A protected fluid, often referred to as a biological fluid or biofluid, is a substance within the body that is regulated and protected by legal or ethical guidelines to prevent unauthorized access, use, or modification. This category includes bodily fluids like blood, saliva, sweat, and semen, which are critical for various physiological processes. The protection of these fluids is essential to maintain privacy, prevent misuse, and ensure ethical standards in medical, research, and personal contexts. For instance, blood samples collected for diagnostic purposes are handled with strict confidentiality to safeguard patient privacy and comply with legal regulations.