what kind of cancer causes legs and feet to swell
I would follow up with your health care provider so that they find out why you are swelling. Regarding your questions about cancer causing this, I do think that cancer needs to be ruled out. Certainly abdominal cancers, especially liver cancer, could cause edema. Prostate cancer should be ruled out as well, although this would be a less likely cause of your edema.
Edema is swelling caused by the abnormal buildup of fluid in the body. The fluid collects under the skin within the tissues that are outside of the circulatory system. The circulatory system carries blood through the body. Edema is most common in the feet and legs. It can also occur in the hands, arms, face, and abdomen. When edema occurs in the abdomen, doctors call it ascites. When it occurs around the lungs, doctors call it pleural effusion.