Jane Gustard, 37, had been aware of the mark on her neck for months, but it was only when her young son Ianto first pointed out it had changed shape that she was spurred into action to get it checked out.
Ianto first spotted the 'freckle' when he was one, and repeatedly asked his mum about it, pointing out it was getting bigger.
Mrs Gustard, a history lecturer from Caerphilly in South Wales told reporters: 'It began with a small mole on my neck, almost like a freckle. Ten months after Ianto was born the freckle got bigger and it was only when he turned one that he began to notice it more and started pointing to it. He would ask me about it and he would point out that it was growing.'
Mrs Gustard said her mum and her husband, Shaun, 38, had both previously nagged her to get the mole looked at. She said she probably would have continued to ignore them if Ianto had not shown such interest in it.
She said when she visited the hospital the consultant took one look at it and said he was going to remove it that day, adding: 'I was shocked . . . but I was thankful that I had gone to the doctor when I did. Ianto helped me catch my skin cancer early. He is a very special little boy'.
Have you a similar story to share? Have you been spurred into action - medical or otherwise - by your kids?