When should you check your mole?

Moles, we all have them, some of us more than others. 

Usually they're harmless but they can be deadly.

New Zealand has the highest rate of melanoma in the world. 

It kills more than 300 Kiwis every year and mole maps cost hundreds of dollars. 

So what can we do to prevent the damage before it gets out of hand, and when should we actually start to worry about moles?

Melanoma New Zealand Clinical Director Dr Anthony Tam spoke to The AM Show.

Watch the video.