If you use needles to inject medicine, for conditions like diabetes for example, it’s your responsibility to ensure that they’re disposed of safely.
You shouldn’t dispose of needles in a general waste bin as they can be dangerous and carry blood-borne viruses such as HIV and hepatitis.
They need to be disposed of in a sharps bin, which is a specially designed box with a secure lid that you can get on prescription from your GP or pharmacist.
Some local councils or hospitals may be able to accept your full sharps bin but always check beforehand.