EvoElite Keto The majority of these cancers affecting young adults were related to obesity: colorectal cancer , endometrial cancer, gall bladder cancer, renal myeloma, pancreatic myeloma, and multiple myeloma. (note: myeloma is a type of cancer that starts in the bone marrow). The largest increase in kidney cancer is in patients aged 25 to 29, with an annual increase of 6.63%.