Different kinds of skin cancer are caused by different kinds of sun exposure: melanoma by childhood sunburns, BCC by weekend sunbathing, and SCC by years of daily sun exposure.

Spending lots of time in the sun on vacations or weekends is more likely to cause BCC than being outside during daily routines like walking to work.

Getting badly sunburned many times before age 25 makes it much more likely for women to get any kind of skin cancer later in life.

Chronic ultraviolet radiation exposure is the primary etiological factor in the development of non-melanoma skin cancers, specifically basal cell carcinoma and squamous cell carcinoma, which frequently occur on sun-exposed facial regions and can result in significant structural disfigurement upon surgical excision.

People who work outside all day for many years, like gardeners or road workers, are much more likely to get a type of skin cancer called SCC than people who work inside, because of all the sun they’re exposed to.

People who reapply sunscreen all the time tend to get more skin cancer — probably because they stay in the sun longer, thinking they’re protected.