ArcMap is run using primarily Shape Files and in more recent versions Geodatabases can be used to store larger sets of data. These file formats are what are uploaded into the program to view spatial data.
Edema is swelling of both legs from a buildup of extra fluid. Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Answer: Red, swollen legs may be a sign of a circulation problem; therefore, it is important to make an appointment with your primary care physician. Most likely what you are experiencing is called edema. Edema is the actual swelling of the ankles and the legs, typically caused by venous hypertension or venous insufficiency.