１、皮肤经常直接暴露于烈日下，且未采取适当的防晒措施，如涂摸防晒霜等。

２、经常使用特制的可使皮肤变成棕色的床（tanning beds）。

３、家族中有成员曾患皮肤癌。

４、因烧伤皮肤色泽变浅。

５、正在服用可增加对太阳光敏感性的药物。

６、免疫功能受损和/或正在服用可抑制自身免疫功能的药物。

另外，还有研究认为长红头发、家境较富裕、年青时曾患癌症和上半身曾患癌症者最易患皮肤癌（见：http://blog.sina.com.cn/s/blog_690c29ec0100lmtb.html）。

Health Tip: Factors That Contribute to Skin Cancer

Avoid blistering sunburns

(HealthDay News) -- People who have had severe blistering sunburns or frequent exposure to the sun's ultraviolet rays are at greater risk of developing skin cancer, the U.S. National Cancer Institute reminds us.　Here the agency's list of additional factors that increase your risk of getting the disease:

１、Using tanning beds on a regular basis.

２、Having had skin cancer before.

３、Having a close family member with a history of skin cancer.

４、Having fair skin that burns easily.

５、Taking medication that increases sensitivity to sunlight.

６、Having a medical condition that compromises the immune system, or taking a medication that suppresses the immune system.