A member asked:

Can sun block cause cancer?

4 doctors weighed in across 2 answers
Dr. Robert Stuart answered

Specializes in

Sun blocks are actually somewhat effective in preventing some skin cancers that are related to excessive sun exposure such as melanoma. We are now finding, however, that some who avoid any sun exposure develop vitamin d deficiency. The key is moderation.

Answered Oct 28, 2011

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Dr. Sabha Ganai answered

Specializes in Surgical Oncology

However, sun block is very helpful in reducing the effect of uv radiation on developing lethal skin cancers such as melanoma. Avoid excess sun exposure and avoid sunburns, but when out and about always take the added measure of using and re-applying sunblock to avoid toxic damage from the sun.

Answered Mar 22, 2020

5.1k views

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