An ovarian cancer action group has triggered anger after suggesting anyone can be diagnosed with the condition - regardless of gender.
Ovarian Cancer Action received backlash online with one user branding the claim "beyond shameful".
As part of Pride Month, the charity posted on social media: "Did you know that anyone with ovaries, regardless of gender identity, can be at risk for ovarian cancer?
"Let’s raise awareness by asking: can men get ovarian cancer? #PrideMonth #OvarianCancerAwareness"
Critics slammed the charity, claiming that it is "divisive", a "delusion" and "fantasy".
One social media user responded to the post: "You won't make ovarian cancer a survivable disease waffling obfuscating b******t like this.
"Women get ovarian cancer, and you are prioritising signalling your adherence to a ridiculous belief system over saving their lives. Beyond shameful."
Another added: "Expunging the word 'woman' from public health discourse is regressive and misogynist."
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The post also included an image which stated: "Can men get ovarian cancer?" along with the answer: "Anyone with ovaries, regardless of gender identity, can be at risk of ovarian cancer.
"Additionally all genders can carry a BRCA gene fault or Lynch syndrome - which would potentially mean their children would be at a higher risk of ovarian cancer."
Responding to the post, Kate Barker, chief executive of the LGB Alliance, told The Telegraph: "Activists want to see the reality of biological sex replaced with a magical fantasy world of 100 genders and they are prepared to sacrifice the health of women to achieve it.
"It clearly matters more to them that a tiny minority of people are confirmed in their delusion that it is possible to change sex than it is to ensure women receive prompt and appropriate medical care."
In contrast, Dr Jane Hamlin, president emerita of the Beaumont Society, a charity added: "Clearly trans men who have ovaries may not be aware that ovarian cancer is still a possibility for them.
"It is wonderful that Ovarian Cancer Action has thought of this and are doing their best to ensure that all those with ovaries are aware of the potential risks.
"Unfortunately, some people with a limited understanding of the diversity of life may not understand why this is so important."
GB News has contacted Ovarian Cancer Action for comment.
