RELATED: Two-Time Cancer Survivor Kathy Bates Warns Others Never to Do This. Jackman was first diagnosed with skin cancer in 2013, and news outlets report that the star has battled the disease six times to date. The actor has been open with the public during each health episode, thanking his doctors, family, friends, and fans for their care and support. “Another basal cell carcinoma. Thanks to frequent checks & amazing doctors, all’s well,” the actor tweeted in 2017.ae0fcc31ae342fd3a1346ebb1f342fcb Basal cell carcinoma is the most common form of skin cancer in the U.S., accounting for roughly 80 percent of all skin cancer cases, experts from Johns Hopkins Medicine write. These malignant growths may look like a “wart, crusty spot, reddish patch, mole, nodule or bump, or a sore that does not heal,” the health organization explains. Given the broad range of possible appearances associated with basal cell carcinoma, it’s important to bring any persistent skin lesion to a dermatologist’s attention. RELATED: HGTV’s Tarek El Moussa Says This Was His First Thyroid Cancer Symptom. With a social media following of over 30 million, Jackman has been vocal in advocating that others take preventative measures against skin cancer. In particular, he says he believes wearing sunscreen as a child could have prevented his own diagnoses. In 2021 after his most recent biopsy, the actor posted a video to Instagram urging others to do just that. “I just want to let you know, I just went to see… my amazing dermatologists and doctors, and they saw something that was a little irregular,” the Wolverine star said, sporting a bandage across his nose. “So they took a biopsy, and they’re getting it checked.” Jackman added that while his doctors were optimistic about this particular growth being benign, it was an important reminder for others to “go and get a check and wear sunscreen. Don’t be like me as a kid, just wear sunscreen,” he told his fans. In 2016, he shared a similar message with his fans after a separate biopsy. “An example of what happens when you don’t wear sunscreen. Basal Cell. The mildest form of cancer but serious, nonetheless. PLEASE USE SUNSCREEN and get regular check-ups,” he wrote at the time. Basal cell carcinoma rarely spreads to the lymph nodes or other organs, and is considered highly treatable. However, Johns Hopkins experts warn that it can also be “locally aggressive”—meaning once you develop one skin lesion, you’re likely to develop more around the same area of the body. “Basal cell carcinoma is not something to be taken lightly,” Deborah S. Sarnoff, MD, president of The Skin Cancer Foundation, writes. “Once you’ve been diagnosed with a BCC, it’s very likely that you will develop more over the years, leading to continuous treatment and possibly even disfiguration.” Because basal cell carcinoma is often the result of intense sun exposure, they often occur on highly visible parts of the body. You’re most likely to develop BCC on your face, ears, nose, neck, shoulders, or back. For more health news sent directly to your inbox, sign up for our daily newsletter. Regularly applying a generous amount of high SPF sunscreen at least 15 to 30 minutes before going outside can greatly reduce your chances of developing skin cancer over time. Reapply every two hours that you’re in the sun, and be especially careful at the beach where water and sand can reflect the sun’s rays intensely, warns the American Society of Clinical Oncology (ASCO). In addition to wearing sunscreen, there are several other ways to help prevent skin cancer. ASCO recommends limiting your time in the sun between the hours of 10 a.m. and 4 p.m., and covering up with protective clothing when possible. This includes high-coverage clothing made with tightly woven fabrics, hats, and sunglasses with 99 to 100 percent UV protection. And, because prevention is only one piece of the puzzle, you should also go for regular checkups with your doctor or dermatologist. As Jackman has warned his fans after his most recent run in with cancer, “don’t think it can’t happen to you.” RELATED: If You Notice This on Your Face, Get Checked for Cancer.