Last Updated on 7 March 2025 by Kim Ormsby
Approximately 156,000 tonnes of clinical waste is collected each year from NHS providers in England alone. That’s the equivalent of over 400 loaded jumbo jets of waste. Ensuring healthcare professionals are properly trained, and waste is segregated and managed effectively impacts the waste levels, reduces costs and mitigates risks by ensuring the safe containment of hazardous materials. This article explores the significance of colour-coded bags, detailing their types, uses, and the importance of proper separation and disposal of clinical waste.
What are clinical waste bags?
Clinical waste bags are designed for the safe containment and disposal of clinical waste. They are made from high-strength plastic to prevent leaks and tears and are colour-coded according to the type of waste they contain. Each type of waste relates to a different disposal procedure, and segregating them in this way means hazardous waste is separated from non-hazardous waste to make sure it’s treated and disposed of correctly. This way, the risk of contamination and spread of infection is reduced and the impact on the environment. The understanding of what waste is placed in which clinical waste bag amongst healthcare professionals is crucial, forming part of a compliant waste management system.
What are the different clinical waste bag colours?
There are various clinical waste bag colours to ensure clear segregation, treatment and disposal depending on the category and type of clinical waste. Here we outline what these colours mean, and what items can be placed in each.
Yellow clinical waste bags
Yellow clinical waste bags are used for highly infectious clinical waste, not usually in the Primary Care setting. This includes anatomical waste, a subcategory of clinical waste. Yellow bags should be used for disposal of bodily fluids and materials that are contaminated like swabs and bandages, contaminated medicinal waste and chemicals (these things should not go into orange bags). Infectious sharps waste should be put into the appropriate sharps bin and then placed into a yellow bag.
Orange clinical waste bags
Infectious clinical waste should be disposed of using orange clinical waste bags. Specifically, waste that has been in contact with patients with an infection. It excludes waste that has been contaminated with medicines, chemicals, bodily fluids or tissues that are non-infectious and includes only infectious or potentially infectious materials such as used swabs, dressings, PPE and plasters.
Yellow and black/tiger striped offensive waste bags
Yellow and black striped waste bags, or tiger striped bags are used for non-infectious, non-hazardous waste that is offensive. It excludes anything contaminated with chemicals or potentially infectious material. Such items include nappies, and sanitary or hygiene waste such as colostomy bags.
Are colour waste bags used for other types of waste?
Yes, colour-coded waste bags are used to safely segregate and manage different types of waste across multiple sectors. For example, yellow bags are used to dispose of anatomical waste, such as human tissue, blood or body parts. Whilst colour waste bags can be used for different types of waste, it’s important for businesses, such as care providers, to follow the colour-coded waste disposal system. This will ensure the safe and clear segregation of waste varieties. For peace of mind, businesses across sectors can access expert waste compliance and training services to ensure internal teams are up to date on the latest waste management regulations.
How are clinical waste bags disposed of?
Specialised waste disposal teams dispose of clinical waste bags, and as they contain potentially harmful infectious agents, they must undergo strict disposal procedures to reduce any risk to public health and the environment and comply with regulations.
Clinical waste bags are colour-coded, sealed and labelled before removal from the healthcare facility. The disposal process varies depending on the type of clinical waste.
Incineration at high temperatures is used to destroy harmful pathogens, reducing the waste to ash which is then taken to landfill. This is used for clinical waste bagged in yellow. Orange waste is either treated or incinerated, yellow and black are disposed of by alternative treatment methods.
Autoclaving sterilises the waste using pressurised steam, making it safe to dispose of in a standard landfill. There are also alternative treatments such as chemical disinfection or microwave technology to neutralise any hazardous properties of the waste. Clinical waste disposal is tightly regulated to ensure health and environmental standards are met.
Why choose Anenta for clinical waste disposal services?
At Anenta, we can help you with a range of clinical waste disposal services. Our collaboration with clients focuses on ensuring adherence to correct waste segregation through education and clinical waste training, focusing on the use of clearly colour-coded containers and labels, and strategic placement of bins. Choosing a waste management partner you can trust is vital, as improper waste segregation not only escalates costs but has a detrimental environmental impact due to incorrect treatment and disposal methods. To discover how our team can help you achieve waste reduction, by delving into your waste strategies and utilising technology to find efficiencies. If you’re encountering issues with your current waste stream management, we can help solve your challenges with our years of experience. Our experts are ready to assist you in exploring cost-saving measures and compliance within your healthcare facility.
Navigating the complexities of clinical waste management demands both diligence and knowledge, especially when it comes to the correct use of colour-coded waste bags. As we’ve explored, each colour signifies a specific type of waste, guiding healthcare professionals towards safer and more efficient disposal practices. If you’d like to discuss your individual clinical waste management challenges, don’t hesitate to get in touch.
