Young doctors need to better police their presence on social media, especially on Facebook, says a new research study from Dartmouth-Hitchcock Medical Center.

The study of 281 young urologists found that many younger physicians are posting—or maintaining current posts—that present them in an unprofessional manner and in some cases violate patient privacy, says Dartmouth-Hitchcock Medical Center urology resident and author of the study Dr. Kevin Koo.

For the study, Facebook was queried with the names of all urologists who graduated from U.S. urology residency programs in 2015 to identify publicly accessible profiles.

Researchers next assessed the Facebook profiles for unprofessional or potentially objectionable content using professionalism guidelines by the American Urological Association, the American Medical Association and the Accreditation Council for Graduate Medical Education.

Of 281 graduates, 223 (79%) were men and 267 (95%) held medical degrees. A total of 201 graduates (72%) had publicly identifiable Facebook profiles.

Of these, 80 profiles—40%—included unprofessional or potentially objectionable content, including 27 profiles (13%) reflecting explicitly unprofessional behavior, such as depictions of intoxication, uncensored profanity, unlawful behavior and confidential patient information, according to Dartmouth-Hitchcock Medical Center researchers.

When unprofessional content was found, the content was self-authored in 82% of categories. Among 85 graduates (42%) who self-identified as an urologist on social media, nearly half contained unprofessional “concerning” content, the study says.

“The majority of recent residency graduates had publicly accessible Facebook profiles, and a substantial proportion contained self-authored unprofessional content,” Koo says. “Of those identifying as urologists on Facebook, approximately half violated published professionalism guidelines and greater awareness of trainees’ online identities is needed.”