Your ability to put weight on your ankle after a sprain will depend on a variety of factors including the severity of your sprain and how much pain you experience as a result. In general, it is always best to keep weight off your injured foot until you can speak with a doctor. Mild sprains that are only a little stiff or swollen may not require intervention, while severe sprains could make your ankle feel unstable and walking difficult because of the pain. If you notice discomfort in your ankle when you place weight on it, you should contact your podiatrist to schedule an appointment to have your sprain evaluated.