The report, published in BMJ (formerly the British Medical Journal) Sexual and Reproductive Health, examined if sex robots promote safer sex, have therapeutic value, or have potential to treat pedophiles and sex offenders, as some creators have claimed. It found that all of these theories have not been proven.

“We call for more research in this sphere,” the report states. “Future health studies might include medical observations, case reports, and measurement of visual and neural responses of users, alongside evidence of the impact of robots, and sexbots in particular, in the education, criminal justice and social science sectors.”

The doctors advise the medical community to “reject the clinical use of sexbots” until more tests are done to determine “harm limitation” and “therapy.”