Tampon brand Tampax faced a backlash yesterday after claiming "not all people with periods are women".
In a tweet championing transgender rights, the firm also insisted "not all women have periods", adding: "Let's celebrate the diversity of all people who bleed!"
But some feminists branded the post "virtue signalling" and accused Tampax's owner, Proctor & Gamble, of "erasing" female identity.
Writer and feminist Susan Dalgety, who backed author JK Rowling amid a transgender row earlier this year, said: "It's a biological fact you need a uterus to menstruate, and that only females have one. Males do not.
