Skin cancer usually occurs because of abnormal cell growth in the body. While the disease is common in areas exposed to the sun, it can develop across other regions of the body. Unfortunately, it is easy to misdiagnose signs of skin cancer for other skin diseases. But statistically, about 1 in 5 people in the country develop the condition by age 70. So, it is imperative to be mindful of these skin cancer warning signs. Lesions Sometimes people develop slightly raised, flat, large lesions on the legs or face. But in the beginning, these may appear as painless spots on the skin, which may not be any cause for alarm. However, if these lesions turn red, purple, or brown, it might be a sign of Kaposi Sarcoma (KS) and should be diagnosed at the earliest. Mole irregularities Unusual changes in the moles present on one’s skin may indicate the presence of melanoma. A few indicators to watch for include when one half of the mole does not look like the other or the mole has irregular borders. The color of a mole may also differ from one area to the other. One should also check if the mole changes in shape, color, and size.