Poor Fearne was in floods as she prepared her evening meal at home. It was so bad that the Celebrity Juice star had mascara running down her face.
Fearne, who became a mum to baby son Rex earlier this year, did however manage to take a selfie as the tears flowed.
Sharing it with her fans on Instagram, Fearne commented: "Crying my eyes out cutting bloody onions."
Fearne's followers took pity on the Radio 1 DJ and were even quick to offer some advice for future meals containing the vegetable.
One told her: "Put a wooden spoon in your mouth." Another added: "My daughter swears by wearing swimming googles."
Being a busy working mum, she might however prefer this tip: "Now this why they invented diced onions. Yes it's lazy, but it's inconvenient and no more tears," another follower suggested.
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