A small proof-of-concept study warns of the presence of microplastics and nanoplastics (MNPs) in the tissues of prostate cancer patients. In tissue samples taken from 10 patients who underwent the procedure, MNPs were present in almost every case. The study was conducted in San Francisco and was published on MedPage Today. The research emphasizes the finding of MNP in prostate tumor tissues. There is no direct causal link or other details about concentrations or types of plastics. The study is characterized as small and serves as a proof of concept.