What is 90% of cancer caused by?
Only 5–10% of all cancer cases can be attributed to genetic defects, whereas the remaining 90–95% have their roots in the environment and lifestyle. There are probably over 300 different rare cancer entities, as defined by an incidence under 6/100,000/year.
What are the top 4 cancers?
At a Glance. Breast, lung and bronchus, prostate, and colorectal cancers account for almost 50% of all new cancer cases in the United States. Deadliest Cancers: Lung, Breast, Colorectal, Pancreatic, Prostate.