However, many cancers in the body are unpredictable and even some cancers are already in advanced stages when the patient feels it. Therefore, many successful people will have regular medical checkups to ensure that cancer is killed in its early stages. However, the skin cancer we are talking about today is well documented. Skin cancer is one of the more malignant cancers and is highly prevalent in Europe and the United States, with one in five people suffering from skin cancer, according to a statistic in the United States. The way to prevent skin cancer is simple: avoid excessive exposure to ultraviolet rays, whether when going out or driving, you should apply sunscreen or clothing to cover the exposed parts to reduce the damage of ultraviolet rays to the skin. Experts from the American Academy of Dermatology have given illustrations, and once you have any of the following chart, you should go to the hospital for relevant examination. Signal: Appearance of new moles larger than 6 mm It is normal for new moles or freckles to appear, after all, changes in the skin are unpredictable, however, once a new mole or freckle appears larger than 6 mm, then it may be a precursor to melanoma. Through Feng Xiaogang’s director’s “Do Not Disturb”, we are no stranger to melanoma, a malignant cancer that is almost incurable and can be controlled by medical means in the early stages, but once it enters the middle and late stages, we can almost only wait for death. In addition, this change is often overlooked in large part because they may grow on the back of the neck or back, so it is difficult to see them. If you have a loved one, you may want to check with each other, and if you find signs you need to seek medical attention, rather than miss them! Sign: A new change in moles Generally, many people have moles on various parts of their body, and they will show up in a symmetrical form. But if your mole is still changing over time and becoming irregular from a regular shape, then it needs to get your attention because it may be a sign of cancer. It is worth noting that many people will think that this change is just a freckle, but they do not know that it is about to kill you. Signal: Mole color change The color of a mole will only be between brown, tan and pink. If your mole has other color changes, such as pure black, blue or even white, it means that you should see a doctor because the change must be caused by cancer. The reason this change is taken lightly is that many people think it is just the effect of light or a tan of the skin. Signal: Scaly skin scars Scaly scars are common skin conditions, but they usually heal quickly and are small in size. If a scaly scar appears more than 6 mm and does not heal for more than 6 weeks, then there may be a problem with skin cancer. Since many people have eczema, such scaly scars are easily overlooked as being caused by eczema, so the next time you see yourself with this condition seek prompt medical attention. It is because skin cancer is very harmful and easy to be ignored, so we should observe our body carefully and familiarize ourselves with it, and seek medical attention when they appear changes to avoid advanced cancer that puts your life in danger.