The white cap of the trocar has fallen off. Is it polluted?

Yes If the white cap of the trocar falls off, it will cause pollution. The white cap on the trocar is used to protect the needle and should be removed before use. If the white cap is dropped or lost, the needle will be exposed and contaminated. Pollution may come from microorganisms, dust or external pollutants in the air. So the white cap of the trocar has fallen off and is contaminated.