The Lavinia Woodward case sends the message that domestic abuse isn't as serious when a man is the victim, according to charity ManKind.
Woodward has been spared jail for stabbing her boyfriend's leg, with Judge Ian Pringle saying a prison sentence would damage her career prospects.
The Oxford University student has been given a 10-month prison sentence, suspended for 18 months, rather than an outright jail term.
Mark Brooks, chairman of the male domestic violence charity ManKind, told Julia Hartley-Brewer: "It sends a real message that domestic abuse, when it’s committed against a man, is not seen as serious as it rightly is when it’s carried out against a female victim.
"It’s all the wrong message and what concerns us is that it puts off more men from coming forward."
He thinks "society still has a problem in accepting men can be victims and men are victims of these types of crimes" and this ruling "starts to move the clock backwards."
Brooks added "certainly we would rightly expect a man in the same situation to actually go to prison for that type of offence" and "no one’s really considering the effect it had on the victim who was a man."
Listen to the full interview above