Comedian Katherine Ryan has disclosed that she is currently battling skin cancer for a second time. The 41-year-old revealed the news on her podcast, Telling Everybody Everything, as she discussed how doctors had initially tried to tell her everything was fine with a mole on her arm. Katherine, who was first diagnosed with melanoma when she was in her early twenties, went on to have the mole removed at a private clinic after insiting it was cut out. They sent away for tests and the comedian, who has three children, was later informed it was cancerous. Read more Katie Price's new 'huge' teeth could cause major health issues, dentists warn Katherine said: "The only reason that they agreed to remove it was because I went to a fancy private place in South Kensington and I paid them a grand. "I don't know if on the NHS they ever would have removed this mole." She also revealed that she had first been told by one private doctor that it was definitely not melanoma, but had gone to have it removed despite his assurances as it kept 'changing'. Katherine, who also suffers from autoimmune disease lupus - where the body's immune system mistakenly attacks healthy tissues, causing inflammation and potential damage to various organs and systems - added: "He gave me the news that I wanted. "I think it's really easy to take a diagnosis of you're healthy and walk away, you go ''great I'm healthy'' and you don't think about it again because that is the easiest news. "But the mole kept changing - I know a lot about melanoma, I had a melanoma as a very young woman, stage two on my leg - and I've spoken about that before. "Even that didn't look traditionally like melanoma to me, fair enough it had some discolouration and asymmetry and a bit of black and red. "It was a flat mole, not that bad and not that big, but it was stage two melanoma so that was bad. "I had to undergo full general anaesthetic and surgery to remove a golf-ball size portion of my leg because - if you're familiar with melanoma, you'll know it's a lethal form of skin cancer that spreads rapidly." She continued to discuss her ongoing battle with cancer: "I just felt like this mole wasn't right. It's on my arm, I shared pictures of it on social media, this is the hole left from having it removed. "I went in wanting the doctor to take out a larger piece of it and stitch it up in a straight line. "But even when he examined it, he was like "not melanoma, totally fine, I will do the shave and send it away for histology and if there's any borders that we missed, then we will do the deeper cut". However, the test confirmed that she needed the deeper cut, and she added: "It just feels surreal to me, like what could have happened if I hadn't advocated for myself - and I will continue to advocate for myself. "If I hadn't insisted, if I had accepted that positive answer the first time and walked away. "Then I would have had melanoma just growing and spreading in my arm and I would say "oh no the doctor says it's fine, it's fine" and who knows how far that would have gone." Katherine expressed her shock at the diagnosis, revealing how she has always been cautious about protecting her skin. Describing how she broke the news to her husband Bobby Kootstra, with home she shares youngest children Bobby, two, and Fenna, 15 months, she added: "I was upset when I called [Bobby] because I feel very fortunate but I also feel like what the f**k? "It's not ideal to have melanoma twice in your life and I obviously have a genetic predisposition, I am someone with type one, Celtic skin, I have over 100 moles. "I don't go in the sun, I wear SPF all the time, I cover my body, I cover my arms, I cover my face, but here's my second go with melanoma that I know of! "I'm thinking f*** what other moles do I need to get checked?" Katherine was first diagnosed with Stage 2 cancer in 2004. Speaking about her previous diagnosis, she said: "The cancer wasn't that serious. It wasn't into my lymph nodes, I didn't have to have chemotherapy. "It did recur, but it was easily dealt with. I feel like I was really lucky just to get that lesson, that little smack on the a**e of "Hey, wait a minute. Listen to your body, here."