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The National Institute for Occupational Safety and Health (NIOSH)
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Workplace Safety and Health Topics
Sun Exposure
Sunburn
Skin Cancer
Recommendations
Additional Resources
Hazards to Outdoor Workers
Related Topics
Protective Clothing
Skin Exposures and Effects
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NIOSH
Sun Exposure - Skin Cancer
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Basal Cell
A small raised bump that looks smooth, shiny, and translucent.
A small, pink, crater-like growth with a raised, rolled border and an indentation in the center.
A scar-like area that is white, yellow, or waxy.
Reddish, irritated patches of skin.
A sore that does not heal.
Can usually be removed by excision or topical treatments.
If diagnosed and treated early, basal cell cancers can be cured.
Basal Cell
A small raised bump that looks smooth, shiny, and translucent.
A small, pink, crater-like growth with a raised, rolled border and an indentation in the center.
A scar-like area that is white, yellow, or waxy.
Reddish, irritated patches of skin.
A sore that does not heal.
Can usually be removed by excision or topical treatments.
If diagnosed and treated early, basal cell cancers can be cured.
Squamous Cell
Crusty, warty appearance.
A raised growth with a depression in the center.
Scaly, red patch area.
A sore that does not heal.
Can usually be removed by excision or topical treatments.
If diagnosed and treated early, squamous cell cancers can be cured.
Squamous Cell
Crusty, warty appearance.
A raised growth with a depression in the center.
Scaly, red patch area.
A sore that does not heal.
Can usually be removed by excision or topical treatments.
If diagnosed and treated early, squamous cell cancers can be cured.
Melanoma
Changes in the size, shape, or color of moles.
Dark mole-like appearance.
Flat or slightly elevated discolored patch (tan, brown, red, black, blue, or white).
Change on the skin:
New spot developing.
Change in size, color, or shape of existing spot or mole.
Malignant melanoma carries significant, even fatal implications.
Incidence of melanoma has been steadily rising, affecting people of all ages.
Melanoma
Changes in the size, shape, or color of moles.
Dark mole-like appearance.
Flat or slightly elevated discolored patch (tan, brown, red, black, blue, or white).
Change on the skin:
New spot developing.
Change in size, color, or shape of existing spot or mole.
Malignant melanoma carries significant, even fatal implications.
Incidence of melanoma has been steadily rising, affecting people of all ages.
Symptoms
In particular, watch for:
Irregular borders on moles (ragged, notched, or blurred edges).
Moles that are not symmetrical (one half doesn't match the other).
Colors that are not uniform throughout.
Moles that are bigger than a pencil eraser.
Sores that bleed and do not heal.
Itchy or painful moles.
Red patches or lumps.
New moles.
Symptoms
In particular, watch for:
Irregular borders on moles (ragged, notched, or blurred edges).
Moles that are not symmetrical (one half doesn't match the other).
Colors that are not uniform throughout.
Moles that are bigger than a pencil eraser.
Sores that bleed and do not heal.
Itchy or painful moles.
Red patches or lumps.
New moles.
Hazards to Outdoor Workers
Related Topics
Protective Clothing
Skin Exposures and Effects
NIOSH Homepage
NIOSH A-Z
Workplace Safety & Health Topics
Publications and Products
Programs
Contact NIOSH
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Page last reviewed:
July 13, 2016
Page last updated:
July 26, 2016
Content source:
National Institute for Occupational Safety and Health
Education and Information Division
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