Infectious Waste: Materials contaminated with blood or other bodily fluids (e.g., swabs, bandages, disposable medical devices).Sharps Waste: Needles, syringes, scalpels, blades, and broken glass. This is considered the most hazardous category due to the risk of disease transmission through needlestick injuries.Pathological Waste: Human tissues, organs, body parts, and bodily fluids.Pharmaceutical & Chemical Waste: Expired or unused medications, cytotoxic drugs, solvents, and disinfectants.