Advertisement

What causes stage 4 melanoma?

Stage 4 melanoma is caused when melanoma progresses and has spread from the skin through the lymph nodes and into other internal organs. When it first develops, it appears that melanoma is caused when there are problems with the DNA that controls skin cells. In people with melanoma, DNA is damaged and causes an overgrowth of skin cells, which results in a cancerous melanoma. Although it's not proven that ultraviolet (UV) light causes melanoma, skin that is exposed to UVA and UVB radiation from sun exposure or tanning beds seems to be most vulnerable to damage. This damaged skin has cancerous growths that then spread throughout the body.

Continue Learning about Melanoma

3 Myths About Sunshine
3 Myths About Sunshine
Sunlight has a profound effect on our bodies, skin and even our mood. And while there's no shortage of information on how to stay safe in the sun, som...
Read More
How are melanoma cells different from other cancer cells?
Philip A. Friedlander, MDPhilip A. Friedlander, MD
Melanoma cells can be hard to eradicate—and even after successful treatment, risk of recurrence rema...
More Answers
How common is melanoma?
Honor Society of Nursing (STTI)Honor Society of Nursing (STTI)
More than 53,000 people are diagnosed with melanoma every year in the United States. The number of n...
More Answers
Can Taking Antioxidant Vitamins Be a Problem If I Have Melanoma?
Can Taking Antioxidant Vitamins Be a Problem If I Have Melanoma?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.