A significant minority of students (17%) were victims of some sort of sexual harassment during their first week of term, a survey suggests.
Sexual comments, wolf-whistling when students walked into lectures, heckling in nightclub queues and jokes about rape were all cited as examples.
The National Union of Students' poll also found two-thirds of students were unaware of how to report abuse.
Universities UK said sexual harassment had "no place" on a university campus.
Students who took part in the survey said the majority (59%) of these incidents of harassment had happened at social events or nightclubs, while a third (33%) had happened in university halls of residence.
It also found two-thirds (66%) stated they were not aware of the procedure to report these incidents and 12% felt they would not be taken seriously if they did.
And 61% said they were not made aware of any codes of conduct implemented by their university, with a further 29% not sure.
The poll of 2,670 students aimed to find out the extent to which students had either been victims of or witnesses to sexual harassment during their first week of term.
Of those who responded, 46% were male and 52% were female; nearly three-quarters (73%) of the respondents were aged between 18 and 20.