When to get your moles checked — as Kevin Jonas recovers from surgery

"A general rule is to look for the 'Ugly Duckling Sign'...  normal moles usually look fairly similar to each other, while dangerous ones look noticeably different"

Kevin Jonas undergoes surgery to remove a cancerous mole (Isabel Infantes/PA Wire)

Kevin Jonas has urged his fans to get their moles checked after he had a cancerous mole removed from his face this week.

The 36-year-old, who is one third of the pop band Jonas Brothers alongside brothers Nick and Joe, posted a video of himself after the surgery to his almost five million followers on Instagram.