A team of investigators, YouTube videos about prostate cancer, claimed that patients under the risk of harm due to misleading medical information.
Scientists from the NYU School of Medicine analyzed the most reviewed 150 YouTube videos in relation to the disease, and stated that in the video or comment section of 77%, there were in fact errors or biased content.
The work published in the journal European Urology fully explained the benefits of different treatments for 75% of the videos, warning about the side effects of 53%.
According to the team, 19% of the videos suggested alternative and unproven drugs. Some of these may directly harm patients.
One video "injected plants" in the prostate to treat cancer.
Researchers, the masses for these videos are large and 1.3 million in the highest number of views, he said.
Dr Stacy Loeb, a urologist at a panel of social media experts for the American Urology Association (AUA), said that "Our study shows that people really need to be careful about many YouTube videos on prostate cancer".
"They have valuable information, but they need to control the source to ensure people's credibility and to see how the videos are outdated by the continuous improvement of resources with science."
Dr Loeb said reliable online resources are widely used for information about prostate cancer. Britain & # 39; also Website for NHS Provides details about diagnosis and treatment.
He added that the volume of videos on YouTube makes it impossible for medical professionals to continuously review them as part of any "policing" effort.
However, he suggested that doctors and viewers use YouTube's reporting feature to alert videos that promote misleading information about the technology giant.
A spokesman for YouTube could not respond to Sky News immediately when it contacted.