The University of Cambridge has admitted that it has a "significant problem" with sexual misconduct after receiving almost 200 complaints in a matter of months.
The University is the first to reveal high numbers of reports after launching an anonymous system which has also been adopted by other institutions.
The revelations come as universities across the country face pressure to tackle sexual harassment, with growing numbers introducing anonymous reporting methods.
The majority of the 173 complaints - 119 - are allegations by students of misconduct by other students. Two students have made complaints about staff and seven staff members have complained about the action of colleagues.
The other complaints, made between the launching of the anonymous reporting tool in May 2017 and January 31 this year, related to neither staff or students. This is because visitors to the campus are also able to complete online questionnaires. Some of the reports are thought to be historic.
Graham Virgo, Professor of English Private Law and Pro-Vice-Chancellor for Education at the University of Cambridge, wrote in a blog: "It supports our belief that we have a significant problem involving sexual misconduct – what we now need to ensure is that those who have been affected receive the support and guidance they need."
Whilst anonymous reports have risen, Cambridge received only six formal allegations between October and December.
Alongside the anonymous reporting tool, Cambridge launched a Breaking the Silence campaign in October last year and that is credited with prompting the second largest spike in reports in the University's history.
Prof Virgo said: "We expected high numbers, and view it as a metric of success. It appears victims have confidence in our promise that these figures will be used to judge the nature and scale of sexual misconduct affecting students and staff, and to act on it accordingly."
A number of other institutions , including the University of Manchester, have introduced the anonymous reporting tool but are yet to report results.