Skin Cancer Screening (PDQ®): Screening - Patient Information [NCI] - What is screening?
Screening is looking for cancer before a person has any symptoms. This can help find cancer at an early stage. When abnormal tissue or cancer is found early, it may be easier to treat. By the time symptoms appear, cancer may have begun to spread.
Scientists are trying to better understand which people are more likely to get certain types of cancer. They also study the things we do and the things around us to see if they cause cancer. This information helps doctors recommend who should be screened for cancer, which screening tests should be used, and how often the tests should be done.
Sunscreen Use and Ultraviolet (UV) Radiation Avoidance
There is inadequate evidence to determine whether the avoidance of sunburns or the use of sunscreen alters the incidence of cutaneous melanoma.
Magnitude of Benefit: Unknown.
Study Design: Primarily cohort or case-control studies. A post-hoc analysis of one randomized controlled trial of regular sunscreen use (vs. use at the personal discretion of the control group) suggested a possible decrease...