1. Reason: After intramuscular injection or blood collection, the nursing staff or laboratory staff will ask the patient or his family members to press the cotton swab to avoid bleeding at the eye of the needle, and then the patient or his family members may throw the contaminated cotton swab into the domestic garbage. There are also some medical staff who are not aware of environmental protection and have a poor understanding of the Regulations on the Management of Medical Wastes and its supporting documents, so it is easy to mix medical wastes with domestic garbage.
2. Rectification measures: strengthen the training of medical staff on the regulations on medical waste management, improve their awareness of medical waste management and environmental protection, and make them fully realize the importance of caring for the environment and preventing infection.