[Ed. – We blame Donald Trump.]
Over a three-week period, think tank Demos counted the number of uses of two particular words as indicators of misogyny.
It found evidence of large-scale misogyny, with 6,500 unique users targeted by 10,000 abusive tweets in the UK alone.
Twitter boss Jack Dorsey has said that tackling abuse is a priority.
The research comes as UK MPs – Yvette Cooper, Maria Miller, Stella Creasy, Jess Philips – alongside former Liberal Democrat minister Jo Swinson, launch their Reclaim the Internet campaign, in response to growing public concern about the impact of hate speech and abuse on social media.
The campaign has opened an online forum to discuss ways to make the internet less aggressive, sexist, racist and homophobic.
Launching the campaign, Ms Cooper told the BBC: “The truth is nobody knows what the best answers are. There is more when there is criminal abuse, for example rape threats, that the police should be doing but what is the responsibility of everyone else? What more should social media platforms be doing?”