About Skin Cancer
The vast majority of skin cancers fall under below three large categories.
Malignant Melanoma (MM)
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One of the least common but most dangerous skin cancers
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Melanomas can grow fast and quick. If untreated they can metastasise to other parts of the body and can become life-threatening in as little as few weeks.
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They can also appear on areas of skin not normally exposed to the sun. They are usually painless, flat, brown/black with an uneven outline but sometimes can also look like a regular, raised, itchy or painful.
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They may be blotchy with more than one colour – brown, black, blue, red, grey or combination of any of these colours. However, some melanomas are pink or skin coloured.

Squamous Cell Cancer (SCC)
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Second most common skin cancer and usually less dangerous than melanoma unless they are of certain subtypes growing over head and neck areas.
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It grows over few weeks to months and appears on skin more often exposed to the sun.
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It can be a crusty, thickened, red, scaly spot/nodule that is usually itchy and painful.

Basal Cell Cancer (BCC)
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This is the most common but least dangerous form of skin cancer.
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It grows slowly, usually over the face, scalp, neck, and upper torso.
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They usually grow as smooth painless pink nodules that easily bleed or irregular pink non healing patches.
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As they grow, they may ulcerate or appear like a sore that fail to completely heal or one that does heal but then breaks down again.

ABCDEs of Skin Cancer
Use ABCDEFG to look for melanoma
A = asymmetry, if two halves of the mole match if you draw a line in the middle
B = border, look for spots with uneven borders
C = colour, look for spots with an unusual colour or more than one shade

D = diameter, look for spots that are larger than 6 mm
E = elevated
F = firm nodule
G = growing
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