KATHERINE Ryan revealed she has melanoma as she bravely opened up about skin cancer diagnosis. The 41-year-old made the confession on the latest episode of her podcast Telling Everybody Everything. It's the second time Katherine has been diagnosed with the disease. Revealing that she felt uneasy about a mole on her arm, Katherine explained that during an initial visit to the doctor she was given the all clear. She said: "I know you should never google things but I’m actually really worried. Normally I’m that positive person "I think it’s really easy to take a diagnosis of ‘you’re healthy’ and walk away. "But the mole kept changing, I know a lot about melanoma, I had melanoma as a very young woman - aged 21 - on my leg, I’ve spoken about that before. "It was flat, it wasn’t that big but it was melanoma. It is a deadly form of skin cancer and it does spread quickly. "I just thought that this mole wasn’t right. It’s on my arm. I showed pictures of it on my social media. I went in and I wanted the doctor to remove it and stitch it up in a straight line. "But even when he looked at it, he was like, ‘it’s not melanoma, it’s totally fine, I will do a shave and send it away for testing’. Katherine added: "And he rang me today and it did come back as melanoma. Early melanoma. The doctor was shocked and told me I need to go back. "It just feels crazy to me, what could have happened, if I hadn't been my own advocate - and I will continue to be my own advocate." Katherine's first brush with melanoma came when she was 21 and studying at Toronto University. She previously told of having a "golf-ball sized" lump removed from her leg. Speaking to The Guardian, she confessed she was too young to take it in at the time, adding: "I just joked that it was free lipo."