← All Resources

Common Types of Medical Waste and How to Dispose of Them Safely

Last reviewed: August 17, 2026

Healthcare facilities generate multiple categories of waste, each with its own handling, packaging, and disposal requirements. Misclassifying waste leads to compliance violations, increased costs, and potential harm to staff and the community. Understanding the different types of medical waste is the first step toward building a safe and compliant waste management program.

This guide breaks down the major categories of medical waste, explains what belongs in each, and outlines the proper disposal method for each type.

Regulated Medical Waste (Red Bag Waste)

Regulated medical waste, often called biohazardous waste or infectious waste, is any waste that has been contaminated with blood or other potentially infectious materials (OPIM). This is the category most people think of when they hear "medical waste." It is typically collected in red bags or containers labeled with the biohazard symbol.

Common items include:

• Blood-soaked bandages and dressings
• Disposable gowns and drapes saturated with blood
• Pathology specimens and tissues
• Culture dishes and devices used to transfer or inoculate cultures
• Items contaminated during surgery or invasive procedures

Disposal: Red bag waste must be collected by a licensed medical waste transporter and treated at a permitted facility through autoclaving (steam sterilization) or incineration before it can go to a landfill.

Sharps Waste

Sharps are any devices that can puncture or lacerate the skin. While technically a subset of regulated medical waste, sharps have their own specific packaging requirements because of the physical injury risk they pose.

Common sharps include:

• Hypodermic needles and syringes
• Scalpel blades and razor blades
• Lancets and blood collection devices
• Broken glass contaminated with blood or OPIM

Disposal: Sharps must be placed in rigid, puncture-resistant, labeled sharps containers. Full containers are picked up by a licensed transporter or returned via a mail-back program for treatment at a permitted facility. Sharps should never be placed in red bags or regular trash.

Pathological Waste

Pathological waste includes recognizable human tissues, organs, and body parts removed during surgery, autopsy, or other medical procedures. Some states also include animal tissues from veterinary or research facilities in this category.

Examples include:

• Surgical specimens (tissue, organs)
• Biopsy samples after examination
• Amputated limbs or body parts
• Placental tissue

Disposal: Pathological waste is typically incinerated. Some states allow autoclaving for certain pathological waste if it is rendered unrecognizable after treatment. Check your state regulations for specific requirements, as rules vary.

Pharmaceutical Waste

Pharmaceutical waste encompasses expired, unused, spilled, or contaminated medications. This category is further divided based on whether the drugs are hazardous or non-hazardous under EPA regulations.

• Non-hazardous pharmaceutical waste: Most expired or unused medications that do not appear on the EPA's P-list, U-list, or exhibit hazardous characteristics. Collected in blue or white containers (varies by provider).
• Hazardous pharmaceutical waste: Medications that meet RCRA criteria for hazardous waste, including P-listed acutely hazardous drugs (such as warfarin, nicotine, and epinephrine), U-listed drugs, and those exhibiting ignitability, corrosivity, reactivity, or toxicity. Collected in black containers.
• Controlled substances: Drugs regulated by the DEA (opioids, benzodiazepines, stimulants) require additional documentation and chain-of-custody procedures for disposal.

Disposal: Non-hazardous pharmaceutical waste is typically incinerated. Hazardous pharmaceutical waste must be managed under RCRA regulations, often through a licensed hazardous waste facility. Controlled substances require DEA-authorized destruction with proper witnessing and documentation.

Chemical and Hazardous Waste

Healthcare facilities use a range of chemicals that become hazardous waste when discarded. This includes:

• Formalin and formaldehyde from pathology labs
• Xylene, acetone, and other solvents used in laboratory processing
• Mercury from broken thermometers or blood pressure devices
• Chemotherapy drugs and their associated contaminated materials
• Disinfectants and sterilization chemicals in concentrated form

Disposal: Chemical waste must be identified, characterized, and disposed of according to RCRA regulations. Generators must determine whether each waste is a listed or characteristic hazardous waste. A licensed hazardous waste transporter and disposal facility are required.

General (Non-Regulated) Medical Waste

Not everything generated in a healthcare facility is regulated medical waste. Items that have not been contaminated with blood or OPIM are considered general waste and can go in regular trash. This includes:

• Paper, packaging, and food waste
• Gloves and gowns that are not saturated with blood
• IV bags that contained non-hazardous fluids
• Disposable equipment that had no contact with blood or OPIM

Properly segregating general waste from regulated waste reduces disposal costs. When non-regulated items are placed in red bags, your facility pays medical waste treatment prices for waste that could have gone in regular trash at a fraction of the cost.

Getting Your Waste Segregation Right

The most effective way to control medical waste costs and stay compliant is to train your staff on proper waste segregation. Every team member, from physicians to housekeeping, should know the difference between red bag waste, sharps, pharmaceutical waste, and general trash. Clear container labeling, consistent placement, and regular training refreshers keep your program on track.