One of the causes of skin cancer is actually spending too much time in the sun and being exposed for long periods of time to UV rays from the sun. While skin cancer is only one of the many different types of cancer, it can be very dangerous. This is why it is important to watch out for skin cancer and cancer moles. However, if the changes in the moles and possibly other types of symptoms are spotted early, then the disease can be cured. Although some may recommend natural herbal remedies, it is important to make sure that you visit your physician if you notice any signs. Cancer moles can be identified by using what is called the ABCD method. The letters stand for the symptoms of the disease and can be used to pinpoint when medical attention needs to be sought. It is important to remember that if you suspect that you may have skin cancer, then the earlier that it is caught, the better. This can mean looking for any changes in the moles that you may have and also being aware of what those changes could be. The first letter A stands for 'asymmetry.' Normally, a mole is round and symmetrical in shape. It is often when the mole begins to grow that it looks a little skewed or asymmetric. In case this happens, ensure that you visit a doctor and mention the first time you observed the change in the skin moles. The second letter B stands for 'border.' If the border of your moles looks jagged or irregular, instead of definite and strong, then this could be a sign of cancer. The letter C indicates another important aspect, 'color.' Often, these moles change in color suddenly, leaving you quite surprised. Lastly, the letter D stands for 'diameter.' Most cancerous moles will grow in size; hence, an increasingly larger diameter could alert you to see a doctor. There are two categories of people who are likely to fall prey to this type of cancer: those with fair (white) skin; those who work for long hours in the sun; those with a family history of cancer (heredity). If you fall into any one of these brackets, then keep a close watch on the cancer moles so you will have the best odds, when and if you discover you suffer from melanoma.