Is basal cell carcinoma caused by sunlight? | Rounds Is basal cell carcinoma caused by sunlight? | Rounds
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Is basal cell carcinoma caused by sunlight?

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Last updated: July 14, 2026 · View editorial policy

Ultraviolet Radiation and Basal Cell Carcinoma

Basal cell carcinoma is caused by damage to skin DNA from ultraviolet radiation (UVR), which is emitted by sunlight. [1] UVR exposure is recognized as the main cause of skin cancer, including basal cell carcinoma. [1]

UVR induces DNA damage in skin cells. [1] This UVR-driven DNA damage contributes to the development of basal cell carcinoma. [1]

Role of Sun Exposure

Avoiding excessive sun exposure is recommended to reduce skin cancer risk. [1] Protective behaviors such as seeking shade and using sun protection reduce UVR exposure. [1]

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