Melanomas often have irregular, uneven borders and a dark or patchy color. The border may also be irregular, notched, or blurred. A melanoma’s color will vary from brown to black. It may also have white patches. The symptoms of melanomas depend on its stage and location. The size of a melanoma mole is a good indicator of its progression. It will likely be larger than a quarter of an inch in diameter. The color and appearance of a melanoma mole may also change over time. If a melanoma grows rapidly, its border may be irregular, notched, or scalloped. Melanoma can develop on any part of the body, but it is most common on the face, legs, and chest. Men are more likely than women to develop melanoma on their chest, back, and legs. The appearance of a melanoma may be brown, black, red, or gray. It can also be patchy or raised. Most melanomas are not malignant, but can be difficult to diagnose. Lentiginous melanomas are often hard to detect, appearing as a dark patch in hard-to-reach places. Bob Marley, the late singer, and songwriter, diagnosed with this type of melanoma. The singer mistakenly attributed a dark patch under his toenail to a soccer injury, but it was a malignant melanoma. This type of melanoma accounts for 10 to 15 percent of all cases.