Mycotoxins are toxic compounds produced by certain types of fungi, commonly referred to as molds. Mycotoxins can contaminate cannabis during cultivation, storage, or processing, posing a potential health risk to consumers if present in significant quantities. Mycotoxins are dangerous to humans, and most regulated cannabis markets require testing for the presence of mycotoxins. Consumers should be aware of the danger and the risk associated with purchasing cannabis in an unregulated market where testing does not occur.