based on your lifestyle, occupation, family history of cancer, and many other factors a risk assessment can be made and accordingly a customised screening tests for cancer can be conducted .. very few cancers can be picked up by screening test..

There are some Tumour Markers which is Done as a Blood test but all are specific for one or More cancer . So you can get some Tumour markers like Serum PSA FOR Prostate cancer , Serum CEA FOR colon cancer , Serum AFP FOR liver cancer, Serum ca 19-9 for pancreatic cancer And other Rountine tests like USG Abdomen , x ray Chest , CBC for screening of some other cancers There is no one test for all cancer in General Look for which cancer runs in your family and if any family history then you should get genetic screening also