Hi, Ankle swelling is a fairly common problem after a certain age. It happens due to the decreased circulation that occurs naturally with everyone with age. In your case also, this is most likely due to your age. You should not worry about this, this does not indicate cancer. Because the swelling is gradually increasing, it is now occurring in the area of the knee. The most likely causes are: Age related: Normal swelling that occurs with age. Kidney diseases Heart diseases Liver diseases Venous insufficiency Lymphedema You should take the following steps: Elevate the feet during sleep, by putting a pillow under your feet at night. Support stockings: these are available at pharmacies. Wear them as often as you can. Exercise: a sedentary lifestyle will make you more prone to this. Low salt diet: cut down salt in your diet. If the swelling increases, you should consult your doctor. You will need tests for kidney, heart and liver diseases and also a doppler study of the veins in your leg. You should look up these sites for some more info: http://www.nlm.nih.gov/medlineplus/ency/article/003104.htm
Lymphedema I hope this answer was helpful. If you need more information, feel free to ask. For accepting this answer, please click on the green 'accept' button below. Feedback/Bonus will be warmly appreciated.